Am i being manipulated? what cant i see is going on when I could in order to leave the home?

I left my husband over 2 year ago beacause he was a mental and physical bully but for 16 month i kept quiet so no physical bullying went on BUT I could see what he was doing - after i left he suddenly changed and I wasn numbed into thinking I left for the wrong reasons but by then I had changed my childrens schools and lifes and still think that moving them and me was for the best - his bahaviour to this day makes me question did i do the right thing - over the past 2 year I have gave hiim the opportunity to make amends - we have gone on family holidays together - but then at xmas he decided he would like me to divorce him -so I started divorce proceedings - at xmas i had a family party - the first time in over 11 years - and after that ive picked up my life again slowly - friends, work dos and all of a sudden after all these years apart i am getting grief when im alone - he loves me, he wants to divorce me in order to get rid of all thes bad feelings of when i left him and start a fresh - i ask WHY for a divorce ??? I found out he has being on match.com and has visited the local singles night reguarly whihc he doesnt deny and has gained a grandaughter which he as never told me about and but yet tells me to this day that he so so so loves me - is this because im moving on and he doesnt like it or do i sit back and think WHY did I leave him and give him a chance ???? i dont think i should ever forget the reasons why i left but i feel im being told that i was wrong to leave