She wants to be with me and then not

Hi my name is surendiran,have been in a realtionship over the last 4 years with a mother(divorced)abusive marridge husband an alcholic.2 kids girl 13& a boy 9.she has confided in me about being abused between the ages of 6-9 yrs old by 3 realatives and the neighbour.seperate incidents over time. she chages her mind so very often she wants to be with me than after a while she does not want any thing to do with me,she wants space.this has been going for 4 years,it getting me down as some thimes she is so very happy,and the next you know she ignores me totally.we suggested therapy when we talk,she agrees but never makes the attempt to go.what do suggest i do? this is one big roller coaster,he kids think i am a treath,i spoil them during christmas and b/days they say i am trying to buy them off.there day lives far away and seldom phones nor visits.i dont spend time with her kids.we hardly ever talk now days.

I you want to stay with her, you will have to accept her personality. Have a nice time with her when she is happy and leave her when she ignores you. Also find other friends and interests, so that you are not wholly dependent on her.