You had a jinx that when you kiss someone your relationship goes terrible and bad things happen overall. This was because of your childhood ex boyfriend. His grandfather caught you kissing him and threatened you and hit you. You abandoned your ex and here you were now. It’s been 8 years since then. You were wasted and you moved in with one of your friends. Three other people lived there. You kissed one of them when drunk and spat on him. You should say sorry.