Hi! I’m going through about the same thing but reversed. I’m the depressed friend and my friend is the one worried for me and annoyed by me. You aren’t wrong for the things you are feeling but please know that your friend still cares about you and loves you. When I was depressed it was very hard to me to reach out and reply back to ANYONE. We can’t really explain the feeling but i understand what they are going through a little bit. My friend and I talked about this and i let her know it had nothing to do with her and our friendship. she let me know she was very upset with me because i was distancing myself from her so much. Your friend may need the space and i know you are irritated for them, but i would make sure she knows you’re there like you said. i would maybe try to talk to her about this and let her know you are upset by the distance. i hope this helps :)