We are friends but he knows I like him. We recently met and so far he has never ignored me. We always had great hang outs. He went on a trip and the same day he came back he messaged me that he came back and that he would love to hang out. So the day after that I asked him if he wants to go grab a coffee and he didn't reply. He saw a message and ignored it. He's been online and posting stuff... Wtf? I don't see why he wouldn't reply. I'm pissed. It's been 3 days now... Is he ghosting? What should I do?