If it feels like all your friends hate you, take a nap, have a snack, exercise, take a shower, play a video game, go outside if you can. Take care of your body and take care of your mind. Do something that helps your body like working out or resting, and do something that keeps your mind from dwelling and reinforcing that pathway. Make it something active that demands attention. I prefer Splatoon when I'm down but we've all got our thing.
Have you considered Mahjong or Chess? Anything that takes your focus will help, but those are good options for me.
Once you've gotten a little time to settle yourself emotionally, talk to your friend(s) about how you're feeling. Was there an inciting incident? Is depression making you feel that way and you just need reassurance? Is this a traumatic response to something they said not realizing it meant something to you? Was something just worded badly in a way that hurt? These are all common experiences, and talking through it is usually the best way.
You can do this. Go get 'em champ.
(If you're really not sure what to say or just need reassurance that it's okay, my Tumblr ask box is open. No promises, but I'll try.)