Yes, you are a giant insecure AH. And it cost you the relationship. You obviously didn't trust her. And she gave you literally zero reason not to. She didn't dress... As if she was taken? Say that out loud. Does that sound right to you?
YTA.
Well the drinking and not telling me kinda made me not trust her like a lot. I can see your point on the clothing I worded that poorly but its sorta what I meant so fair.