How would you help user MG6993, who asks:

I’ve (m23) been seeing this guy (m29) for the past few months. When we started talking, he had just gotten out of a long relationship. I found him trying to rush our relationship, so I tried to slow it down. I told him that I think he was rushing it because he was use to being in a relationship and he knew he loved me. He told me to break down my walls and to let him in. Eventually I stopped trying to slow us down and I fell for him, and even telling him I loved him. After I told him that, he started to distance himself and then came to conclusion that he did rush it. He said he wanted to be single for a upcoming trip (which he is currently on). As a result he wanted to slow us down: meaning that he wants to opportunity to talk to other people, yet still talk and go on dates with me. As much as it hurt I agreed, because I understood.

Fast forward a few weeks after he told me he wanted to slow things down, he also told me he was talking to another guy (m19). I obviously was upset over this, but I didn’t tell him. Since I was so hurt, I ended up hooking up with someone else that same week. When I told him what I did and why, he told me that he hasn’t talked to the 19 year old and blocked him on everything. Today I was scrolling through Instagram, someone popped up in the “suggested” list. It was that 19 year old he was talking to. I clicked on it and it said he was still following him. It also showed that he liked a picture from 5 days ago. He told me he blocked him 7 days ago. Now paranoid me started looking through his Instagram likes and I saw he and his ex have recently been liking things from each other. He told me he blocked his ex months ago. Why did he lie about blocking these two individuals?

I know we aren’t together, but how much is too much? I love him, but I can’t keep getting hurt. I feel like whenever we make any sort of progress, something happens and I feel bad if I can’t handle it.