Not sure what to do

My boyfriend looks at the same women on fb from his work place everyday. This women has only 4 picture . And he is looking at the same picture everyday for over a month . Even when he is at work and she is at work he is going on her fb profile . Is it normal ? He also wanks a lot over a real women on fb a girl he used to talk with before he met me . He also has big time wandering eye . Wherever we go he stares at every women every time I asked he always try to end the relationship. He is really nice with me and I think he is attracted by me too but he has also way too much attention for other women . I had to stop going to the gym together with him cause he embarrasses me a lot . The problem is when I ask him about this or get upset about he always asks me to leave him .