He has dated a few girls casually in the past but has never been in a serious relationship, and I dont know if he's even looking for one.
But I know for once that I'm much better than the girls he casually dated in the past in the sense I have a lot in common with him and I think we'll get along really well. But somehow, everytime I try talking (only through call/texts, we've never met), he seems closed off, hot and cold and almost disinterested.
Why can't he talk/get to know me like he does with other people (not just with girls or in romantic sense but he loves connecting with people in general)? Even casually?
I know nothing about you. You might be pretty, but about as fun to talk to as a rock.
A lot of my friends say I have a very interesting personality. I'm someone who loves deep conversations and like I said we both have a lot in common. I've tried to bring up interesting conversations with him about those things, so I dont think me being boring is the problem.
Well, it's pretty clear that something is the problem, because he's not interested in talking to you.
Yes, that's what I'm trying to find out.
He also seems to send quite long texts for the intitial few messages when I text him and then just goes cold.
Sounds to me like you might have been boring. I have no idea, though. This is all taking stabs into the dark. Without reading the messages myself, I can't say.
You should ask him. I mean, he already ran off. It's not like there's anything else to ruin.
I can assure I wasn't boring. Had I been, he would've been cold all the time. Not hot and cold. What could be other possible reasons? I'm not sure if I want to ask him.
You said something that made him decide he doesn't want to pursue you further.
Maybe. Also, at what point and based on what do guys decide if a girl is just for casual dating or a long term one?
I don't casually date, so I'm not qualified to answer that. Before I got married, when I dated, it was with the intention of seeing if they were potentially compatible as a spouse. I view "casual" dating as a waste of time, that doing so would occupy time that could be better spent.