Please offer some advice.?

I dated a guy for about 6 months and we broke up over 2 years ago. Since then, we have sort of kept in touch, hooked up every time we have got together -- though I am still in love with him. He is manipulative, selfish and immature when it comes to us however and I have struggled with this fact since the get go. Now my question: he is on my facebook page and yesterday I noticed he changed his status to "in a relationship" -- I immediately went to the bathroom at work and started to cry hysterically. i didn't sleep last night and feel shaky today. I didnt think I would react so severly to the news... I am aware that it has been 2 years since we split -- but is it wrong to delete him from my FB page? I feel petty doing so, but honestly can't see him and his relationship. I want to be strong and forget him -- but I am really stuck here. Any advice ? It's been so long and I know it's fresh to see him in a new relationship for the first time, so hoping time will help.. but meantime, is deleting him mean when he thinks we are friends now?