Most Helpful Girl
You are seeing all these red flags, but you keep ignoring them. You know exactly what he's doing, you've said it yourself. You just don't want to admit it and lose him or somehow be wrong.
Look at all the red flags:
He lies to you and tells you he's blocked her
He hides you and refuses to have you talk about him, and he will only like things if *you* ask him to. He's trying to hide his association with you
He complains about the girl but does nothing!
Him tossing the phone at you, is basically saying I don't want to deal with this problem and it is your responsibility. A guy who is stand up, one who cares for you, isn't going to do that
You think he's using you for money. Does he have a job? Does he contribute financially in any way. He doesn't have to pay for everything, but you shouldn't be either.
He deletes his responses to her!
You know what to do, which is to break up with him. You deserve so much more than that.
I wish you the best! I know you have the strength to do this!