Wife no longer in love with me

[cam]

I went to the doctor today and told her of my situation, she prescribed anti depressants for me. Probably made me feel worse about myself to know that a doctor believes I'm in such a bad way. It staggers me that my life has become like this and when I reflect back I would never have expected someone like me would be on medication.
My wife has been on and off anti depressants as has her family and it scares me that now I'm there too.
She gets back from America next Tuesday. I'm so nervous and worried as to what's coming next from her and what's in store over the next few months.