Tiypo
Forever Phone Posting
I don't think it was so much that he isn't the type to have one as it is the girls in his school annoyed the shit out of him. In fact I think that he would be more inclined to be with a girl here if only because the female cast have the potential to be strong enough to stand on their own rather then simply cling to him. Just the fact that Inner Moka and Mizore have already helped him in fights probably is doing favors for his outlook on the local female population.Honestly, Jotaro isn't the type of guy to have a girlfriend. At least not in high school and college.
We know nothing of Jotaro Wife and how the divorce happened. Like Seriously.
And I don't think he's a dense protag as much as he doesn't choose to let anyone in. To win him whoever is at it will probably have to go on at least a few serious adventures with him first to work their way past his defenses enough to get him to take their confession seriously.