Asked him to hang and he left me on seen

My boyfriend told me he was maybe going on vacation on Thursday. He left it at that and never mentioned it again. Today he tells me he's leaving tomorrow night. And I'm surprised because he didn't tell me to confirm if he was leaving or not not since he spoke hypothetically. I asked him If he wanted to hang out tonight for a few since I'm not going to see him in 2 weeks... he seened my msg but kept getting online. That hurt a lot...

Am I wrong for feeling hurt? I tend to ve oversentive sometimes but I don't know... I told him I'll miss him (before double texting asking him to hang out) and he didn't reply to that msg...