I have extra merital affair Please help me ?

I have 6 yr old girl. Six months back my husband involve in girl who is working with him. I asked my husband abt his relation with the girl he says i dont have any feelings 4 her but i notice his behaviour with her. its like they are looking 4 each other. I marked all this things when we went for his office picnic. then i told his friend to help me in this matter. But for my surprise he told everything to my husband & that girl. because of his misbehave we started fighting every day on this issue. i told him to leave this job but he dint. i used to share everything with one of my friend. He is youger then me. I started liking him. we used to share evrything. he also started liking me. one day he proposed me & i said yes. Now that girl got engaged with the same guy who told evrything to my hubby. now my hubby is also very distrub about what that girl did. He is not listening my at all. i love my husband & that boy also. i dont want 2 leave any one of them.