Feelings from my past.. new relationship

TMI MENTIONS ABORTION***** DO NOT READ IF SENSITIVE TO ABORTION SUBJECT********

I was in a very emotional abusive relationship last year. I got pregnant 2 months in and he had a very strong impact on the choice I made for an abortion. It was a decision I made for him and not myself at the time. Over a year later I have flashbacks and ptsd/depression episodes (not all the time) from the whole relationship and abortion. I am in a very healthy relationship now with a new man that wants children with me and treats me like a queen. But sometimes I find myself thinking about my ex and wishing we could have made it work. I think it’s more so the emotion of regret towards the abortion and not so much missing my ex. But I feel wrong for having these feelings but also being with my boyfriend. I wish I didn’t think about everything that happend anymore so I could just be super happy with my boyfriend but I always have these lingering thoughts from my past. My boyfriend knows about everything that happend and he supports me and just tells me time heals everything.. I feel terrible for putting my past on him