Been divorced for 3 years now... still angry

I've been divorced for three years now. It was super rough in the beginning (thankfully we had no children together), but he served me the papers while I was in the hospital recovering from mental illness and took all his things, found a new job and a new place and moved out... all within two weeks. I'm still angry over it because he basically served me papers grabbed his things and left, and that was it. No closure or reasoning, I felt like Carrie in Sex in the City when she got broken up with by a post-it note.... except that I had been with my ex husband for 7 years and owned a business with him. In one fell swoop, I lost him, I lost my cat, I lost my stuff, I lost my job and I lost my place to live... AND he took all the money we had saved and closed my credit cards since he was the primary on them. Soooo yes angry to say the least.

I've moved on, went back to school, found a new partner (who's now my fiancee), found a new place to live and a new, wonderful, cat, new friends and am generallywell taken care of by everyone. Yet anger towards my ex just pops up every now and then and I'm tired of it. I've done everything I can think of to deal with it... therapy, journaling, moving on... it's just some things happen that trigger me enough to bring me back to that anger and I just don't know what to do with it anymore...

thanks for reading, im just venting...