it should be elevated and iced continuously. if it doesn’t improve somewhat in 24hrs, go to urgent care/ED because it may be broken.

it should also be wrapped and braced.

DO NOT walk on it or put any weight on it.

Edit: even if you didn’t break it, you have severely sprained it, and very likely tore some ligaments. You will need crutches for at least two weeks. Put as a little weight on it as possible during recovery or it will take longer to recover. Ibuprofen for the swelling, keep it wrapped and braced, and ice it when you’re not on it while keeping it elevated.

I hate to say it this mean, but your SO is a fucking idiot.

There’s no way to know what’s wrong for sure, but the extreme bruising, degree of pain, and inability to bear weight all point to a more severe injury, be is a break, a horrible sprain, or even some kind of outright tear to ligaments or tendons.

At the very minimum, you need to RICE that shit, get some crutches, and add some NSAIDs for both the pain and the inflammation/swelling.

Seriously, your partner is out of their fucking mind if they can’t tell a bad injury needs to be taken care of.

Expect at least a week of recovery, that’s about as fast as sprain is going to improve enough to walk unaided by something. You can maybe make do with a cane until you can get xrays done. And you should. A bad enough break can literally cripple you long term. If it heals bad, you could end up needing surgery to fix it, and even that won’t always get you back to 100%. I’m not saying that’s what it is, I’m just saying that the worst case scenario is life long pain and loss of mobility.

Black and blue and screaming when you put weight on it is NOT a good sign. Go to a doctor asap

Go to the doctor, get it looked at and get crutches

Bruh what kind of girlfriend is not sympathetic to her boyfriend falling down the stairs and having a visibly injured ankle?

Anyways it’s either sprained or broken.

Rest. Ice. Wrap with ace bandage. Keep it elevated above your heart for >12 hrs/day.