This is pretty standard for a person with depression. Try to imagine it this way. You feel horrible. There's a weight the size of a black hole pressing on your shoulders and another one residing in your gut. But people are trying to be nice, and this does not correlate with your feeling about yourself. The answer? Push them away. Make them go. Make the external world fit with your internal sense of self. Why not accept the love that is offered? Why not push away the darkness and depression? Because the darkness and depression are lodged permanently inside of you...Still, deep beneath the depression, there is still a tiny spark of a human who values his or herself. Sometimes that that shred of their souls manages to push out and raise its voice a bit. At moments like these, the depressed person can remember what it is like to not hate yourself, and it can be possible to accept love for a few moments.
When friends, family and lovers support a depressed person, it does make a difference, even if the depressed person fights it. It's almost like a test to see whether you really care enough to care for us, despite our horribleness...It's not easy being depressed or being there for then the way they need you to be,but if you can find it in your heart to hold your ground,you'll make a commendable difference.