We trust Jiwoo. Whether she drinks or not, it is not important. Jiwoo is a grown up woman, it was a party, and she can drink , have fun & socialize with other people. Actually it is good. JW didn’t do anything wrong. Don’t make a big deal. I think at a party, if she didn’t drink anything and just sat and did nothing , it would be stranger. Better to be play hard when socializing and work hard in work time.