<human>: Can you provide a brief overview of the text?

Hi, so my friend ,who I'll call Jess, recently went to a party where she went mudding for the first time, and for those who don't know what mudding is it's where you take a truck out into a muddy field and rip it around basically.  She told me she went mudding and that she went to a party but she didn't tell me that the guy who was driving had a few drink before asking her to go mudding.  Me and this girl have had a long history together, she says she loves me, and I'm pretty sure I love her too but I don't trust her enough to date her anymore because she cheated on her long-term ex-boyfriend.  Besides that, though, I still really care for her and her safety, and when I expressed my concern she simply brushed it off saying "Well I don't know what to say.  I did it and it happened.  Nothing I can do about it now."  It pisses me off to no end because she doesn't seem to care whatsoever.  It's not like she knew this guy for very long either, she just met him at the party, apparently he is a friend of one of her long-term best friends.  My question is, am I over-reacting to this situation?
<bot>: Close friend of 3 years went mudding with a drunk driver, I expressed my concern and she didn't seem to care.  Am I over-reacting?