2. Your friend with benefits has a partner. Finding out that the man has someone else in his life is painful. If he has a girlfriend, then how serious is he about you? Do not expect any serious proposal from him if he has a partner. If he really loved you, he would have never been in search for anyone else. Who are you for him if he has another girl he is dating? You might be feeling committed to him and your relationship, but you need to know that your man is also committed. No one has the right to make you their victim. Do not let him cheat on you. Actually, he is cheating both you and the other woman he is with. That means you are in love with an absolutely dishonest individual. Leave him.