I'm staying in a hotel with my girlfriend tonight. We have never spent the night together before. She insisted that I share a room with her, but she wanted two beds and wouldn't let me sleep with her.

Girls must be reserved. Since she shares a room with you, she just wants to sleep with you. However, she still has to deal with people asking her how to respond appropriately to stay reserved. So I would say, although I live in one room, I sleep in separate beds. As for the truth, it's up to you.