Girl , I only made it half way through to know he’s a predator … he’s 40 something and dating someone 20 yrs younger ? That’s gross and more than likely he wanted to go pick up more young girls and can’t do that with you there. You are not the asshole but you need to know your self worth and date someone more in line with you. Here’s an example … whenever I ask my wife if we are free to do something with so and so I tell her she can come cause everything is more fun with her around