<human>: Give me a shortened version of the text

My life is pretty much falling apart at this moment. I still live at home while I attend uni. I had a great life growing up with very supportive and happy parents. 

My parents have been together for 20+ years (never married though) and have had a pretty normal relationship I think (apart from being less social than other couples I guess. They don't really do any socializing at all. They spend all time with eachother).

The problem is... my mother was seriously bullied when she was in her teens. Like, seriously bullied. And I can tell that this still affects her today. She has 0 confidence and if you ever object her suggestions she'll go into "Well fine, my suggestion was completely useless, do whatever you want" mode. There is no room for discussion or anything.

So, my father is a big fan of training. He likes to go to the gym and he likes running. But this is a big no no to my mother. She's basically forbidding him to do this for reasons unknown. While she won't EXPLICITLY say "I forbid you to do this" she'll just go into the "You do whatever you want with your time. You always do." mode where she implies that he doesn't give a fuck about her opinion which is not true at all.

I guess that it's not my responsibility as a son to fix their relationship but as I still live in the house, it affects me a lot. 

The problem is that I can't really go into the discussion? She'll think that I take my father's side and she'll be even more "I'm 100% wrong and I'm worthless" which is not what I want. 

I know the most reasonable thing would be to just move out and think that this is none of my problem but I love my parents, we have a great relationship and I know that they won't deal with this problem if I just leave them to it. They'd just be two miserable people living together.

I really want my mother to go into therapy but I have no idea how to put it without making it sound like I think she's mentally ill or something...
<bot>: My mother was bullied a lot as a teen, she's now being unreasonable to my father and goes into a self-hating mode if you object her. What can (should?) I, as a son, do?