Times can be tough, I had the issue of being nagged by my GF all the time to the point where I couldnt even go to the bathroom if I left a cup on the table. I cant even begin to describe how i sometimes felt inside. if I went out for a cigarette, shed say "now your avoiding the situation like always".

but you can wiggle your way out of certan situations you dont like, not saying they will get you somewhere better, but if you do nothing, nothing will change. Im in the process of ending a long term relationship, I told her how I felt and it was not easy at all. I also felt very forced to stay put in the relationship with a baby, I want to be a good father and I felt staying in the relationship was the only way, or the best way. But I could not seem to be happy with her much at all, I cared about her feelings more then my own well being for way too long, Leaving didnt seem like an option but it was and I feel a bit of relief and sadness.

I dont know what your situation is, I know you may not be able to avoid your mom, but things can change if you make them, no matter how obligated you feel right now.
I dont know why you feel forced in the relationship, but if its because you dont want to hurt her feelings. You need to ask your self if she cares about your feelings as much as you care about hers. I realized my GF never cared about my feelings, just wanted me to be around and didnt care how I was feeling. It was just me who cared about hers.