I am in a relationship for 7yrs and for few days I have noticed that might be he is cheating on me.but I could not find anything bcoz he is very much love me anything do for me but in few days I think he is in affair with someone else I and my mom's also asked him that in life has anybody came so leave my daughter/leave me but he didn't accepted at all even he was came to my house to confess that he is not cheating on me he.confess to my mom also after he's visit one day at 12:49 after we talked each other when called​ him again at 12:49 he's line was busy in a second he put down the phone with whom he was talking he called me on my another number expect that number with i called him and when I asked him with whom u were talking why ur line was busy he said my line was busy with little twisted tongue pls help me pls pls.