How do I deal with a guy who is asking for commitment and assurance?

He keeps on alternating between being cold towards me and removing backgrounds from messenger if he noticed I didn't message him. He already expressed how he doesn't like that I disappear but I told him I'm dealing with anxiety and commitment issues but he's still upset.

I said I will try to address my commitment issues but he said he's getting tired and kept on pleading for reassurance before he grew cold. He also told me I was the only one he is talking to for many months already and he wants to be exclusive but I really just want everything to stay the same and just naturally progress from there.

I do like him but my like is still at 40%. It is getting there and I did tell him but he's growing frustrated. We were supposed to not anymore talk to each other but then he saw me across the street and it was an accidental meeting but I didn't see him. He then went back 100% and began to be too much again lol. In the end, he got so upset and complained about all my faults like when I was not there for him during his lowest moments. (I disappeared because I have anxiety).

It doesn't help that whenever we talk, he keeps mentioning he wants to have a baby, we will have one in the future, and he keeps thinking ahead. We have been talking for 3 months but I feel it's not enough yet.

How do I deal with a guy who is asking for commitment and assurance?
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