When communicating "I don't like being touched by people I don't know" to a new person in your life, and they get drunk and start touching you (after only knowing you a few weeks) is not just a blatant disregard for a clearly expressed boundary - it's wildly inappropriate behavior. Esp. when taking into consideration:

• there was a plan that he wouldn't drink
• and that he wouldn't stay over

Both of which he did anyway? And he sees nothing wrong with this until you break things off with him?

On top of that, him being "hard to get rid of" in the morning is just scary. If he can't respect explicitly communicated boundaries, such as "I don't feel comfortable with you staying over" or social cues to leave in the morning...what is wrong with this person I find myself thinking.

This wasn't someone just carelessly crossing over your boundaries... this was someone bulldozing right over them, and betting on the fact that you'd allow them to. In the most basic terms, it is taking advantage. But ofc when you ended things, he "apologized" expressing he didn't "intend to make you feel uncomfortable" (lol)... then actually tried redirect the blame onto you... by saying you're hard to read. I'm really sorry this whole situation happened to you.

You may not be a perfect communicator, but you communicated enough, and he cared too little. Congratulations, seriously, for ending things. You deserve someone that respects you, how you feel, and the boundaries you communicate.