A good or bad sign?

[Faith2010]

H is going out to to dinner with friend that's in town tonight. H said they were going to a bar after, then laughed (i.e. H has a history of problem drinking behavior x14 years, sober for 4.5 years). I told H to be careful and to call someone if he needs a ride. H responded he'd call me, I said Okay, if I'm around. I then told him to have fun. H's response to that was something like "Right, Ashlee. Why don't you just give it up?" H then appeared upset, got ready to go and S, who just walks in, asks why H is upset. H says he's not and leaves without another word. I am a bit confused. I was perfectly pleasant and I thought supportive. Is H upset with me cause I'm nice or mad at himself or what? Did I handle this stich incorrectly?