Reading that definitely made me cringe. I guess you get to learn the tough way what happens when you try too hard and don't register social cues other people give. The reality everyone must face (sometimes the tough way,) is no matter how much we want someone to respond the way we want them to, they have a completely independent brain which could want to do something else. Either let that person cut you out of her life, or apologize saying you were an ass hat then letting her choose if she want to cut you out of her life. Don't go around asking for forgiveness and reconciliation, being desperate will only perpetuate your socially awkwardness. Also, don't do anything stupid on social media, just (pretend) to lay low therefor a bit.