Penny/Hannah
I'm sure on some level you really do care about him Hannah. You've been mates for how long now? But that doesn't mean that it has to go beyond being mates, right? I mean, maybe what you thought was something, was just your affection for him?
I have to admit, I worry about ruining things too. I think that's normal. Just don't let it control what you do, yeah? Just have fun with it. That's all any of us can do on a date.