Sharing a hotel room with a guy? Any advice please?

I was hoping for some advice on a problem of mine. One of my friends from college found out that I was interested in anime, and gave me the number of an old friend of hers who was also interested in it. We've been talking to and texting each other for about half a year now, he seems really sweet, and my friend seems to think so too.

Since we both love anime, we planned on finally meeting up at a huge anime convention this fall. We're both pretty broke, so the idea was to cut costs as much as possible, and he suggested getting a single room with two beds.

To be blunt, I'm a prude, a goody-goody, law abiding citizen. Even though nothing would go on, the mere thought of sharing a room with a male made me worry about what people would think, so I quickly told him that I'd prefer two rooms. He took this to mean that I don't trust him, even after all this time. Needless to say, he's hurt. I never thought it would offend him.

I now see three options here.

1. Refuse to care what others think and see if he'll still agree to the same room- different beds arrangement

2. risk ticking him (and likely our mutual friend) off by trying even harder to convince him to see my point

or 3. A married friend of mine is going to the same anime convention, I could try to convince him to get a room right next to the one we'd be sharing. Kind of like an assurance to me that someone would be there to vouch that no strange noises were coming from the room. (Sorry to be blunt)

What should I do?