He obviously has some issues with you and or the relationship
Those could vary from being annoyed at your sloppiness (example) to being bored or unattracted to having 3 18 year old side girls. Could be anything
I suggest getting it out of him.
He must learn to talk about the things that he is missing. If he can't then the relationship cannot handle disagreements.
Talk to each other instead of just leaving him because of a problem.
If you think I am insulting you with my post or bashing you: You do not get the point.
I am not here to insult or bash anyone. I offer up my free time to help. Take from my post what is useful to you.
If you are angry about my post or myself, then please stop and think how that happened. Usually that is the way the brain responds if a critical belief system is challenged (its called cognitive dissonance). If you have trouble with it please answer in the thread. I will come back to you.