This is what I have gathered from multiple sources (sauces). Keltie saw some pictures on Ryan's phone of him and this family friend (who happened to be a girl), assumed he was cheating and then dumped him. And people thought it involved Brendon cuz, you know, they kind of act gay together, but we all know its not rly like that. So yeah. Basically, Kelties a bitch and Ryan deserves way better than her.