Closure?

Should I have any closure to my ex cheating boyfriend?

We are almost 4 years LDR and our relationship just ended last September because of him saying that he’s not happy anymore… and then I found out that he’s cheating on me for a month( with her new coworker where he’s the one whose training her) before we broke up. The breakup was about him not being happy about LDR anymore because I just knew about the cheating issue after because one his friends confessed everything to me with proofs :( I tried asking him if it is true and then just denied it until the end :( We are really okay last August but then September came, and for me it is just a blink of an eye that the almost 4 year strong and happy relationship come to an end.

I’m on the process of grieving and moving on and slowly accepting things but this is really hard for me because in a span of almost 2 months he already posts pictures of them together :( (this is the same girl who he denied so his friend is right all this time)

And then something really important came of that he and his whole family need to go back here in the Philippines so he is coming back anytime next week. I still have contact with his grandmother and told me about going back home next week.

Is this a sign that I should talk to him or not :(

I still have a lot of questions and still in shock about everything that happened. Or should I continue having no contact with him :(((