There is no easy way to tell your partner you think they are cheating on you.

Most relationships are built on love, respect, and trust.

Suggesting your partner is cheating on you is essentially saying you don't trust your partner. 

To preserve this trust, it is essential to stop accusing your partner.

When you want to stop accusing your partner, start by acknowledging that you have doubts about your partner's fidelity. 

Trying to deny what you are feeling may only make the thoughts worse.

Acknowledging your feelings might help resolve your doubts.

The past usually finds a way to resurface. 

Consider your past with your partner and if there are unresolved issues that have been left unresolved. 

This might be the source of your insecurities.

Once you and your partner come together in marriage or a relationship, it is easy to lose your independence and become reliant on your partner. 

This might lead you to constant thoughts about your partner, both good and bad. 

Regaining your independence will allow you to focus on things other than your partner.

You can consider these methods to stop accusing your partner:

Acknowledge Your Feelings 

You might find that you believe your partner is cheating, yet you act as if these thoughts don't exist.

Burying your feelings might appear to be your solution. 

The problem with this is things buried often don't stay buried forever.

When you refuse to acknowledge your feelings, you are likely to have those feelings resurface. 

However, it might surface as uncontrolled rage or unexplained anger at your partner.

Try to consider if you have changed when addressing your partner.

Maybe you have been more combative towards your partner.

It might bring you the clarity to acknowledge your feelings.

Whether your feelings are false or true, you need to respect and recognize your feelings that your partner is cheating.

Remember that just because you acknowledge you are feeling a certain way, you can choose not to act on that feeling.

Acknowledging your feelings could lead to deeper self-reflection and conversation with your partner.

Maintain Your Independence 

When you love someone, it is common to spend a large part of your time thinking about them.

It is easy to lose track of your interests and hobbies. 

However, making a deliberate effort to maintain independence will keep your mind from drifting to the wrong places.

Suppose you have come to rely on your partner to the point of dependence.

You might become very sensitive to all acts of your partner.

For instance, you could read into an unreplied text or the time your partner spends with his other friends.

In a situation where you are independent of your partner, you might be more open to spending some time apart.

This might be the time to try new things and spend more time with your friends.

Most relationships have a level of dependency on each other from partners. 

The right balance is the key here. 

To stop accusing your partner, you might want to consider maintaining your independence by delving into your life.

Confront Your Fear

Fear is a natural part of being human. 

Between a couple, one of the biggest fears that exists is cheating. 

If this fear is left untamed, it can grow large enough to consume your mind and cause you to accuse your partner.

The fear of your partner cheating might be common; however, remember you have power over this fear.

Imagine how the accusations would hurt your partner.

Perhaps that might give you the motivation to address your concerns.

Consider playing out your fears in your head.

You might realize how ridiculous to have let them dominate your mind. 

Address the fears by remembering who your partner is.

You might be forced to face your greatest fears to stop accusing your partner of cheating.

Remember not to allow all the negative thoughts to fester in your mind.

Actively challenge the fear-based beliefs you have.

Address Your Unresolved Issues 

Most couples have a lot of history between them. 

The reason you might be accusing your partner may be linked to an unresolved issue or old wounds. 

To stop accusing your partner, you might have to address underlying problems with your partner.

Old wounds, especially wounds that did not heal properly, might resurface.

If your partner had cheated in the past or you had previously experienced cheating from another person.

The past may dominate your thoughts.

Explore your past with your partner. Identify any issues you believe could be the source of your accusing your partner. 

If you have unresolved issues, try your best to deal with them.

The best way to deal with the past is to address it. 

Be gentle with yourself and try to deal with the issues.

Remember that accusing your partner might itself cause more issues.

Tell Your Partner Your Feelings 

For a couple, communication is the most important thing.

If you can't stop accusing your partner, consider simply telling your partner your feelings. 

Your partner may be able to address the fears and doubts you have in the relationship.

How you inform your partner is just as important as what you share. 

Be cautious when you tell your partner that you can't stop accusing them. 

Do this without blaming your partner for your feelings but don't hold back on your emotions.

There may be reasons you have for accusing your partner. 

Discuss these reasons and listen to what your partner says.

Don't be surprised if they are a little defensive or it takes time to respond.

Your partner might be able to reassure you and address your fears. 

Although your partner may feel mistrust, an honest conversation may resolve the doubts. 

Sometimes, the way to move forward is a simple and open conversation.

Conclusion

Accusing your partner is not the ideal state of being for couples. 

This indicates there are other issues either from you or your partner.

If you don't stop accusing your partner, they may feel untrusted and hurt.

You can stop accusing your partner by acknowledging your feelings, maintaining your independence, confronting your fears, addressing your unresolved issues, and talking to your partner.

Resources 

https://psychcentral.com/blog/the-nightmare-of-a-false-accusation#2
https://www.wikihow.com/Stop-Accusing-My-Girlfriend-of-Cheating
https://www.betterhelp.com/advice/relations/is-he-cheating-or-am-i-paranoid-how-to-know-for-sure/
https://www.marriage.com/advice/relationship/psychological-effects-of-false-accusations-in-a-relationship/
https://www.myjoyonline.com/what-to-do-when-youre-wrongly-accused-of-cheating/