Black out from red wine

I hope this is the right subreddit to get a real answer to this. For context, I drink every weekend and red wine has been my go to for getting drunk. Typically I’d drink 2/3 or a whole bottle for the night and it def gets me drunk but not blackout or incoherent like I’m still functioning and I don’t wake up hungover the next day. Okay so about two months ago my boyfriend and I go out to eat. I have two draft beers, catch a little buzz and then we go home. At least an hour had passed after the beers and I decide to drink a glass of red wine. Then another both within about 30 mins of each other. This is nothing crazy for me like I should’ve been fine but I wake up the next morning not remembering going to bed. I asked my bf what happened and he was like dude you were sloppy drunk last night like slurring your words saying nonsense. Then i passed out on the couch apparently. I have no recollection of this and to be slurring my words after two glasses of wine??? That ain’t me. So this scared me and I stopped drinking wine until last weekend when I go out to dinner with a friend. I had one glass of red wine and go home. Two hours pass and then I end up drinking with my other friend. Within a three hour time period I consume 4 shots.This is not a lot for me like I had been drinking more than that the past few weekends and never even browned out. Anyways, my friend leaves and I text my bf to make sure he’s not coming home and fall asleep on the couch. I wake up at 6 am to multiple missed calls from my bf and im thinking damn I never told him I was going to bed he’s probably worried. I get up and hear noise coming from our bedroom and I know I didn’t turn the tv on so I’m scared, walk back to our room and see my bf laying in bed. I’m like wtf you came home?? He said when I didn’t answer my phone he was worried someone broke in so he drove home. He came thru the front door which I was sleeping 6 feet from. I didn’t hear him come in, I didn’t hear my dog barking, I didn’t feel or remember him shaking me awake. I really feel like this is from the red wine but why is it doing this to me all of sudden and why red wine??? Please someone give me an explanation. I’m going to drink a bottle of red wine tmrw night as my final experiment.