Most Helpful Guy
I can understand your doubt and second thoughts. It's enough to drive a person crazy when you try and figure the other person's motives out. However, there's the solution:
Do not try and figure the other person out.
Because you will never get anywhere. You will be caught up in endless cycles of blame, jealousy etc etc.
Social media is a great source of frustration and jealousy. So ignore it.
So what should you focus on? You should focus on the only thing you have 100% control over: you. Focus on what you really want. Focus on what it is you like about him. Those are the things that attracted you to him initially. Whether you two end up together eventually or not, you will feel better in the process and you will be much closer to attracting these same qualities from him, or someone else.
Come to think of it, why would you ever focus on negative things? It's not like somebody is paying you to be jealous. So just let it go.
Whether you get back together or not is of course entirely up to you. The good thing is that there's no harm done either way. You can try again and if it doesn't work out, split up again. Try to stay apart and if it gets unbearable, get together with him again. If he doesn't want to, well then he doesn't want to.
I hope this gives you a bit of solace and makes a bit of sense.