Hooking up with this Uber guy!!

So ok it is finally happening!!! Anyone who reads all of my posts knows that I have been trying to get with this Uber driver for forever since my friend and I met him a few months ago.  Well this weekend it is happening!!! So it will likely be... Group activities lol since my friend and I are both into him and she's hanging out too.  I'm so nervous to even hang out again with him which makes me scared that I'm going to catch feelings because I do that when I have sex. Then I feel bad after sex because I feel dirty. So how can I disconnect from this situation? Also do people use condoms in threesomes? I have condoms and I don't take BC so I feel like he should use one but isn't it still just as bad if he's got his penis in one person then the other?  This is so confusing I don't even know how threesomes work!!! He's so hot though I'm excited and I hope he talks to me after, but then I'm afraid he might like my friend more than me:(