Be direct but calm about your feelings -- he is likely to be defensive about his mother.Meyers recommends letting him know that he should prioritize you over his mother -- at this point in your lives, it's only natural.

Consider whether your partner's codependency is a deal-breaker, suggests Meyers.

You may not need to break up with him -- instead, try to see him as a person with limitations.

Codependent relationships between mothers and sons often develop in situations where the mother is a single parent or the father is emotionally estranged, explains certified life coach and dating expert J. The mother recreates the lost relationship via her son, causing an unhealthy dynamic.

This is a highly charged situation that you can't alter -- change must come from your partner. Your partner may not realize that their codependency is hurting his relationship with you.

Dating a "momma's boy" can spell bad news for your relationship.

If a man is too reliant on his mother it creates a triangulated relationship that causes resentment, according to clinical psychologist Seth Meyers.

Signs that your partner has a codependent relationship with his mother include avoiding confrontation with her, taking her side, an inability to say "no" to her and not allowing anything negative to be said about her.

If this describes your partner, it's important to know how to approach him about the situation and what to expect.

Your partner also needs to demonstrate to his mother that he's loyal to you first and foremost.

The reality is that no matter what you say, he has to communicate these boundaries to her and be willing to change their dynamic.

A therapist might help him to make the necessary changes.