Cheater Boyfriend

You and him were dating for years already. The date was going on so we'll and he's so affectionate. He suddenly changed in a blink of an eye. He started to became distant and cold towards you. You found him so suspicious since he goes out at night. You also found someone on his phone. You started to became sick and later on, you found out that you're 4 months pregnant. He comes home, late again. He smells like alcohol and there's a kiss mark on his neck. "Ugh."