Some people can have a curious attitude toward non-drinkers. My wife doesn’t drink - no reason, just doesn’t like it - and has twice had her drinks spiked at works dos. Rest assured I didn’t know about it or I would have “had a word” with those responsible.
I also have a friend who went through the AA process and can now sit and drink water without bothering about the occasional looks from those whose combined pub attendance doesn’t approach his.
They also both insist on getting their rounds or putting full whack into a whip.
After past experience of drunken girlfriends I can highly recommend the situation.