<human>: Condense the text into a few key points

My girlfriend and I just started to date officially yesterday. She is going to a 5k run today and doesn't have a car so her male friend is going with her. It is in another city, so she slept over at his house last night. I don't want to be a watch dog, controlling, paranoid, all that stuff over her life. I don't think she did anything with him that I wouldn't approve..I at least hope not. I made sure that she knows we are exclusive, but maybe her view of exclusive is different than mine. Am I worrying when I shouldn't be? I don't think I should bring my concern up with her, or is it a better idea to? I could talk to her about what our exclusiveness means. Thanks!
<bot>: gf and I made official yesterday, she slept at a male friends house last night, don't know how to feel/react.