Last night I went out to a pub quiz with a social group I just joined to make new friends. They all seemed very nice. I wasn't drinking as I was driving but one girl had a few too many glasses of wine. At the end of the evening the male organiser offered to drive her home, BUT he'd been really flirty and tactile with both me and her all evening. It was only after they went that I thought to myself that although the guy seemed really nice he was being very tactile and I was wondering if she was OK and maybe I should have jumped in and offered her a lift as well. I thought about emailing her today to apologise for not offering her a lift and to check she is OK but don't want to insinuate anything bad about the guy especially as its a small group and likelihood is I'll be seeing them both again. Some guys are just like that I think and don't mean anything of it but she was quite vulnerable. What would you do? Think I am over-reacting?