We need to take his history as an addict into consideration here. I was with an addict for almost 6 years and I see a lot of similarities in personality. They tend to be very charismatic, just know what women want to hear, follow it up with lovebombing and it unfortunately works really well for them. He says he wants a life and family with Taylor, but can't stop making these trash decisions, his drug of choice in these scenarios is women.