My partner is an alcoholic. He always drank but it has taken on a different level now where it's become apparent that he can't not drink. He drinks every night, I can count on one hand the number of nights in the last year that he hasn't had a drink. Up until recently it hasn't massively affected his personality, he's not an aggressive or abusive drunk, but recently he has started having mood swings, being more irritable during the day when he's not drinking and I know it's connected.
I have literally pleaded with him and tried to talk to him in every way to get him to stop, sometimes he has said he would but it never lasts. We have two very young children together and if I thought he would genuinely try, I would support him so we can keep our family together, but he's not trying and I can't have them grow up in this. I can't have them seeing this as normal. We have a 6 month old and on the first night we brought her home from the hospital he drank a bottle of champagne a neighbour gave us, then his usual beers, and was out cold all night. I was up holding a screaming newborn in one arm and a crying toddler in another, with blood running down my legs because I had bled through my pad and wasn't able to change it. I just stood, crying, bouncing them trying to somehow calm them while he lay there passed out. I hoped when I told him the next morning it might somehow jolt him into realising what his drinking is doing, it didn't. There are many other instances like this but this one will always stick in my head.
It's not your average situation though as we also have my partner's children from a previous relationship, my stepkids, full time. If I leave, their world will unravel and I will be separating my own children from their siblings and leaving them with their alcoholic father. I feel genuinely awful about it (im pretty positive they will end up living with my partner's mum if I leave) and have considered saying I would take them too but I don't think I could cope with them plus my own children on my own, plus it would only give him more freedom to drink himself to death. I feel like if he is ever to stand any chance of getting better I need to leave, and leave without giving him any of the get outs that enable him to keep going. He's not ever going to do it while I'm here making sure everything is okay and being the cushion to the effects of his drinking.
My plan is to leave after Christmas. I want to make it as happy and settled as possible for the children and then will leave sometime in the new year. My family are aware and very supportive. I know it seems daft though but I don't really know where to start... I was thinking of beginning to prep our house to be put on the market (he couldn't afford to buy me out and I don't want to stay here- my family and friends are all 3 hours away so I will be moving back there) but beyond that I don't really know... we don't have shared finances and aren't married. I would be happy for him to see the kids but no overnights obviously (he doesn't drink in the daytime, just the evenings, obviously if this changed then so would contact conditions). Does anyone have any advice?