Boy problems

There's this guy and when he does decide to text me he's really sweet and tell me everything he loves about me . And how much he likes me . Then doesn't respond for weeks/months . Well yesterday we had planned to facetime . And he said he would be free at 9. So around 3 he never replied to me . So I texted him again and asked if we were still gonna FaceTime or not . He don't even bother to read my text . But he goes and reads my snapchat stories and can be on facebook . I'm so lost on what to do . Help ?!