<human>: Can you give me the gist of the text in a nutshell?

Long story short, I, 28f was in love with my ex-roommate, 29m. The feelings were there for quite awhile, even while we were living together... I know he also felt something even though we never formally talked about it. I considered he and I to be quite close. 

We winded up sleeping together before he left to move overseas. I knew he was moving, but couldn't help myself. My feelings for him had gotten so strong I couldn't hold back any longer.

I tried to talk to him about it before he left but instead he left without saying goodbye, which was extremely hurtful, and it caused me a lot more pain than I had ever imagined. I winded up sending him an email fully explaining how I felt and he said he didn't mean to leave without saying goodbye, however he never said anything that acknowleded how I felt about him. 

I have forgiven him now though it has taken me a long time. I've never felt so strongly about someone before and I thought I would be over it by now, but I still miss him and find myself thinking about him a lot.

We haven't talked or interacted at all in a year now. No likes on Facebook, no Snapchats, Tweets... nothing. 

He's living overseas and I have been thinking about sending him an email to see how he's doing - a very casual email, and I'm very conflicted as to whether or not I should send it. 

I don't understand why I can't let it go. It seems to go in cycles, where I miss him a lot, then I don't. I've tried everything... I've gone on trips overseas, focused on my career and other hobbies, made heaps of new friends, gone on dates with other guys, but in the end I wind up missing him and wishing he was there with me.

Has anyone else ever been in this situation? Do you think I should contact him even after how things ended?
<bot>: Should I contact a guy I miss that lives overseas even though we haven't spoken or seen eachother in a year?