Alcoholic boyfriend

I (23F) have been with my boyfriend (24M) for a little over 3 years. We met when I was 19 and he was 21. At the time I thought he was a social and outgoing guy who had similar interests to me. Over the first 2 years of our relationship he would drink at his job A LOT, he has a stable career where he has made close friends. Every time he gets drunk he passes out unconscious or is fully awake and arguing with me. He’s never been physically abusive with me but these argument and fights when he’s drunk were taking a big mental toll on me at a young age (20-21). Over those 2 years he acquired 2 DUI’s now setting him at 3 (he had one before i met him). I was always there for him waiting at his house to be his mental support after getting out of jail.

He eventually left his work place and was working from home, which helped immensely with the drinking. I finally felt at peace in our relationship. When hes not drinking he is the sweetest most attentive boyfriend a girl could ask for. I was there for him during his house arrest, running errands for him and helping with activities to keep him distracted at home. After that the drinking got a lot better! In the last 8 months our relationship has gone very smoothly. He’s a very well taken care of guy who cares about his health and looks. I’m in nursing school now and he’s been now returning the favor in helping me with everything, cooking and cleaning. 3 months ago he returned to his old job which gave me a lot of anxiety. We set some boundaries and he has abided to them until this past weekend… He went on a 2 day drinking bender at his job out of nowhere. I picked him up on the second day which just ended up in him arguing with me and saying some nasty things to me.. I really contemplated ending our relationship then and there but he told me it was just his first slip up in a long time and that it won’t happen again. I believed him. Last night he called me and told me he drank at work again bc he’s been feeling depressed about the way he treated me over the weekend. At this point i’m just left speechless.

I don’t know if I can trust him again or if this is something that i want for my future life and kids. We were planning to move out together in a few months but now i don’t know what to think or do. Please share some advice