suma,
I am sorry about your depression. Good for you for getting treatment for it. What is the nature of that treatment?
I suggest that 6 months is not a long enough time to really to get to know another person to be so deeply in love with them. The first 9 months or so is the honeymoon, stars in your eyes stage of the relationship usually. Love is a verb which goes beyond the goo goo eyes and chemistry. It is like mindfulness. It takes work in good times and in bad. It is caring in the midst of drudgery or pain. That probably does not help you right now.
You ask, how do you get over this break up. Beyond your treatment with depression, I believe in the power of meditation. I believe in facing our pain by sitting with it really helps. This depression, betrayed love, loneliness all are a part of you. I believe that the process of staying with those things that give us pain helps us through it. Robert Frost said, “The best way out is always through. ”
I wish you healing and comfort.
Mark