I'll echo the sentiment already being expressed here by other commenters. This neurotic, paranoid state of mind you seem to be displaying here is not healthy for your relationship and only has the potential to drive away your partner should you ever let it get out of control.
The last thing you should be doing is monitoring your partner's social media accounts to see who is liking their latest pictures, that is no way to live your life.
Look inside, ask yourself why you are feeling so insecure about things, and put some work in to fix that insecurity / void. You'll be stronger, your relationship will be stronger, and you'll have a better happier life.
Best of luck to you.