I wonder why you’d not admit to him that those were drunk texts. You said it “should be obvious”. How so? You said to leave you alone so if he doesn’t know you were drunk, no wonder he is confused.

Is there a reason you can’t admit that or a reason he might find it obvious? If someone sends me nasty text, the last thing on my mind would be that they were drunk. It sure wouldn’t be obvious to me unless I knew they have substance abuse problem, which you said you don’t. Maybe the whole issue would be resolved if you admitted you were drunk. But maybe it would make it worse. Regardless, this isn’t a healthy relationship.