<human>: Provide a brief overview of the text.

I've been dating someone for about a month but I've actually known him for several years. Things have been going great this last month up until this week.. he's pulling a disappearing act almost overnight. 

We spent most of last weekend together and when Monday came we obviously had to go back to our work lives. We had been in constant communication (texting) up until Monday night.. he didn't return any of my texts. No biggie, I figure. Then I didn't hear at all from him Tuesday and I didn't text him. On Wednesday I finally try texting him and his responses are those very short, one-word responses, nothing at all like the past month had been. I even mentioned I was sick that day (which is true, I feel like shit) and not even a drop of concern from him. Typically here is when I would cut to the chase and ask what's up.

However, I'm wondering if this is my fault. Friday night I went out with a few of my friends (all of whom I've known for years) and the night gets very fuzzy for me. I don't remember much of the end of the evening. I hitched a ride home with one of them (who is a guy) and crashed on his couch. That's it. Nothing even close happened between us. I'm worried that somehow word got back to my guy that I went home with another guy, and he's distancing himself from me hoping that I get the hint. This may seem paranoid on my part, but I live in a town where everyone knows someone who knows you. 

I talked to my friend whose couch I crashed on and asked him if I was behaving in any way inappropriately toward him or any other guy in the group. He said no, I'd just had a little too much to drink (fell off the wagon but that's a story for another time).

I want to confront my guy about his behavior and see if I hurt him by my actions. Or, if he is in fact just not that into me anymore. I just don't know what to say. I do really like him, and I may have fucked it up already.
<bot>: Guy I've been dating for a month (but have known for years) pulls a disappearing act but I could be the one to blame. How do I go about this?