I doubt that you are a fruit! I don't share my diagnostic code with any fruits (depression, dysthymic disorder). I highly suspect that noone else on this forum is a fruit.
If your friend ran off because you slipt and mentioned that you have trouble with depression, then he/she might need an education on mental health issues. It is absolutely surprising how many people, especially women, who have problems with depression. Depression is the most common of the "mental disorders."
If they left for some other reason, then you can still find friends elsewhere (although it will probably be hard).
Are you working with a T on any of this? I hope you can find some other friends and build a good relationship with them.