I mean I only read the first few and I can't believe you've continued seeing him. You're obviously uncomfortable, he's inappropriate, needy, controlling and sulky. Why on earth have you continued to entertain even the notion of this eejit?
keeps referencing that he's in love with me when I'm obviously uncomfortable (I said it back once about a month ago after too much to drink but I do not feel this way and have not said it since)
when he says he loves me or misses me and I don't respond to that part of the message he replies with "harsh"
when I say I have to go when we're on the phone he whines and says "5 more mins" which always turns into ages
when out for a drink and I only want to stay for one he always pushes and pushes for me to stay out later with him
And this last one is absolutely fucking mental. Also a bit frightening:
keeps talking about wanting to get me pregnant instantly (this is absolutely not of interest to me and I haven't slept with him)
Can you see how poor your boundaries are to be still seeing this bloke?
I don't think you should be dating anyone until your boundaries are more robust.