Just found out that my ex got married :(

I just found out my ex got married. We broke up on good terms due to things we couldnt control. However, today I saw from his facebook that he got married (due to family pressure). I also got exams soon and I cant concentrate! I also dont have the heart to and am so anxious to delete him from my facebook. I feel so lonely right now. My exams are also taking a toll on me. I would have handled it better if I was in a better situation. Also me and him dont talk at all anymore. But how do I stay happy and move on? :(