I understand there's deep reason for you doing this, and firstly I hope you get yourself some proper help to control it.
But surely you know, YABU? You have cut yourself quite badly. THING IS you know YABU. What do you want? YABU. You know that.
It's NOT your DP/DH's problem, he is not 'a bastard'. Seriously... with an OP like that what do you want?
I am not imune to issues, pain, MH problems, but sorry.. I'm also not tolerant to arsehole posts that boast about it. Forgive me for that. You don't need cuddles from strangers, you're intelligent enough to know that you posted here for the drama, you're shock value SUCKS.
Forgive me. My best mate recently just did it. No drama. No bloody fucking arsing am dram, they're just dead.... no 'cries for help' (your friends would hear if you asked) and missus, you have history, don't you? You can't tolerate a normaL DRUNKEN NIGHT OUT without wanting to win the argument by being stupid can you? The boy who cried wolf got caught, don't be that twat.
If you have a drunken row with your loved one and you then self harm, you need more than mumsnet sweety, seriously.
Call me an insensitive bitch, but OP MUMSNET will not solve your problems and you know it.
Go to hospital. Tell them why. Get the professional help. Surrender to help, take all you can get, or frankly.... from someone who's loved (VERY MUCH) and lost... FUCK off frankly. You know what you're doing, you know why, get help. People die. Its so fucking meaningless, please don't fucking die.... If You're not there yet, seriously.... stop posting shit on here and get yourself some real help.
Sorry if I offend. Absolutely sorry.