Not an even an incel thing, this guy’s had sex, has had a long term girlfriend previously, but for some reason just doesn’t come to meetups with women there any more and even makes an excuse to leave if a woman he doesn’t know well arrives unexpectedly
He might have hangups of various sorts that make him feel uncomfortable around women he doesn’t know well (which qualifies as not being well-adjusted, imo). Having had a girlfriend and sex does not have any bearing on that. For a more specific answer you’d probably need to ask him or someone who knows him better.
While he’s clearly not well adjusted, he’s not necessarily an incel (he could be, just not necessarily).
well otherwise well adjusted ig