I have read some ot he posts and feel there is too much 'get out' going on. Obviously loads of people have been in similar situations and I do not advocate staying witha a violent man, but as your relationship with your husband is OK then that is a starting point.
I was in a similar position for 23 yrs and last year - on my daughters advice moved out. I was so unhappy and so were the rest of the family.
My husband had 'bullied' and 'controlled' bothe the children and me and because of my own low self esteem I let it happen. I told him - no love. no respect = no marriage.
We talked a lot and ar still together. The children - 21 and 17 have talked it through too and in our case have managed to resolve this. I am having BIG problems with my 17 yr old son and know ther are lots of ulterior motives and me, me, me going on there. Please don't rush into anything.
PM me if you want and I will be thinking of you all.