I recently broke things off with my partner of 10 years, we got together in 2016 and we have 3 children together (5yrs, 4yrs and 3yrs old). We never married. Recently, i would say for the last year her drinking had started getting out of hand. She would drink to the point where she just looked gross. It escelated to her going out with her friends once a week to multiple times a week (inherently thats not bad), the real problems started when i would wake up for work at 5:30 and shes nowhere to be found, when i call her, she would come home drunk and i would leave for work, knowing shes just gonna sleep all day while our kids are up and about, which meant when i got home our apartment would be a total wreck (trash from the kids everywhere, toys and clothes all over the place, dishes everywhere) i would then clean it up myself when i got home. This type of thing had been going on for a year, now fastforward to a few months ago, i had just bought a car so that we would have two vehicles. Within 2 weeks she totals the car with the kids in the car (i kick myself in the ass because i knew that she had been out drinking all night and morning the night before, and i wish i would have just stayed home from work. The kids are all totally fine, they were not injured in the slightest.) So i am beyond being pissed, i am just so dissappointed and just numb. I didnt even know what to say. I was at my breaking point, her drinking was just getting too outa hand and she was not acting like she wanted to fix it, but i thought maybe her totaling one of ours cars would be her realization... nope, literally a week later, my son woke me up at around 4:30am weezing and coughing, i jumped up to take him to the hospital, and what do you know... our car is gone, shes out with her friends getting drunk. I call her and she doesnt answer, instead she text me and says that shes still at work (which was an obvious lie) i finally get ahold of her and tell her our son is sick and to come home. I wait like 20 min and her mom calls me. She got pulled over, got arrested and got charged with a dui. Luckily the cop left the car so i could pick it up. This is where i broke, i just couldnt do this anymore. The drinking, the lies, not being there when me or the kids need her, i couldnt risk her wrecking our only other car or putting our kids in danger again. So i told her to pack her stuff and leave, and she did. She now lives with her mom and i have the kids.
Edit: i guess im asking this because, idk if im doing the right thing, throwing 10 years down the drain just like that. We have had alot of great times in those 10 years, and shes been my best friend for 10 years. It just feels wild not being with her, but she has become totally unhinged...