I NEED OPINIONS ON THESE AWKWARD SITUATIONS?

I had a friendlationship like this before and now we have been together for five years. I think that he does really like you and can be jealous of not being the only person in your circle. It can be hard, but I think that you should find out what is really going on and proceed from there. However, if you are not ready to hear the truth (whatever that might be, then don't ask. Unfortunately, sometimes it is better not to know.