Angsty Arthur/Merlin uni fic

Looking for a specific fic where they have sex "by accident" the first time - both angry, Arthur drunk; he was at a party and Merlin knocked on the door to complain about the noise. It's the first time with a guy for both of them; Merlin is mostly OK with this, but Arthur freaks out, becomes aggressive and blames Merlin - despite not being able to keep his hands off him - and finally clinically depressed.