Post-Breakup Blues

Me
So my boyfriend and I broke up almost 4 months ago after 2 years together. We're both college students, in our mid 20s, and we both come from different socioeconomic, cultural, and religious backgrounds. His parents decided he had to date a girl from his culture, so he ended it with me on Valentine's Day, with a box of chocolates and a "we need to talk" line. I had cried for 2 hours that day on his lap. We love each other, but it's hard to even talk, considering the current girlfriend goes to our college. I had been upset for the last 4 months, but I still managed to graduate with a solid 4.0 this past semester. We kept communication up until finals, when we had our final goodbye. 
The reason why I'm here is, I had met my ex the day after I was sexually assaulted by another guy and both of these days are coming up this week, at a 2 year mark. I get extreme anxiety whenever I think about my traumatic experience, and the day I met my ex is special to me. However, now it just makes me extremely sad. 
I was wondering if anyone has any advice to cope when dates like these come up, because I don't know what I can do to distract myself from thinking about both events.