Falling out of love or just depression?

For the past month or so I’ve been terribly depressed. I’m breaking out, picking at my skin due to anxiety, barely sleeping or sleeping until 5pm, etc. I’ve basically stopped giving a crap. I just lost a friend all because I wasn’t answering his texts due to me not being in the mood to talk. Then I haven’t talked to my best friend in a week either. Depression is pulling me in deeper and deeper and now I’m even starting to question my relationship. Everything has been fine between us but these last few weeks I’ve been unable to show the love and care that I used to. I don’t have the energy for it and I often feel it goes unappreciated anyway.

I can’t tell if this is my depression or not so my feelings are so mixed right now...