ignored.

The guy that I like and am kind of talking to is ignoring me. I was talking to him today no problem but all of a sudden he stopped responding. And he does take awhile to respond sometimes but it's been like 8+ hrs. I saw him online on other social media so I know he has his phone. Honestly don't know what I did, the last message I sent said "I'll give you space" and I know this isn't a question... I just needed to vent. So hurt right now. It just annoys me so much that he couldn't at least say why he's upset or tell me he needs space. I hate just being ignored out of the blue like this. I mean we're adults. Shouldn't we talk about things