AITAH for being 'done' with our flaky friend?

I (26F) am part of a friendship group, which includes 'Jack', 24M. Jack is a minor influencer on Instagram, and he is very charismatic, funny, and loud. I really liked him at first but I'm starting to get very tired. He will lovebomb and message you saying how much he loves you as a friend, then he'll say that we should hang out soon. As soon as you suggest something, he'll ghost you for days and claim he was very busy.

Everyone wants to be his friend, but he only seems to go to events or hangouts that serve some kind of interest or need. For example, one time he heard a friend of a friend who is in the field of work he wants to transition to was coming over, so he came, too. Or, he'll message and ask to come over right now because he's lonely, which I don't like. If we're busy he'll send sad faces and say how much he misses me/my roommates. It's been like this for the 2 years we've know each other and I'm getting tired. My roommates are also friends with Jack and say we should be understanding because he is super fun when he's here.

We're having a party next week and I sent him out the invite a few weeks ago. I usually send a reminder but I'm so done with his flakiness and then sudden enthusiasm once you finally pin him down that I said I'm not going to remind him. My roommates think I'm being reactive but I said if it's important enough for him to come then we shouldn't have to keep reminding him. I just feel burnt out and done with him because of the love bombing and then flakiness. Even in our group chat he uses it to promote events he's hosting for work etc. So, AITA for being done, and not reminding him about our party?