Does she love me or not is it menopause??mid life criss??or cheating?

i have been married for 15 yrs i do love my wife very much!!!she is 42 and i am 38.but just out of the blue last month big fight then tells me she loves me but not in love with me and thinks we should seperate!!in which all know thats a bad move!!i abmit i can be abusive with my mouth but she does to thats how we always was with each other we would nit pick thats all but now the teaseing hurts for both of us!!and first of all its my fault for drinking i cant drink i get mean i qut for 10 yrs !!then she found some old friends from back in the day and all she wants to do is go out to bars on the weekend!!thats how i got back drinking which got us to were we are today!!!she dont drink!!but any way she got in touch with her best friend from 20 yr ago and its a dude i was alright with at first but i am not know she says she isnt cheating evrybody says they have always been friends,but just dont belive!!she leaves the house to call when she was calling him they would be on the phone for 5 hrs plus,then i got drunk and said my point of veiw of things then bam.i dont love u anymore i love you like a brother not a husband !!!!i am crushed and want to seperate!!! but when i try and go she says hold a couple of months maybe i can love you again???last night was the first time in months we didnt have or son i wanted to take her out and wine and dine and woo her but she didnt want it had to go with friends!!!and starts out the door with wedding ring on that hurt more cause if u dont love me then why were the ring that is a simble of our love for each other not my love for u??of course made her mad!!!!she still give me a kiss goodbye and tell me she loves me??can still sleep in bed but no touch or anything?? i am so confused i havent been the best husband but i have never cheated or ever had feeling for anyone but her she is my life and i have lost her!!! i try to keep it togther for our son sake, i just cant cry anymore!!!! is it midlife criss or menopause or has our time ran out?? please help