In daily life, what kind of behavior between the same sex do you hate the most?

In my life, I can't stand being too intimate between the same sex. Many girls always make too intimate moves because everyone is a girl. Maybe these are very normal for some girls, but in my opinion, they are unacceptable, especially physical intimate contact, which I strongly resist.

Maybe I put too much emphasis on private space, so even in the public bathhouse, I was reluctant to change clothes in front of everyone for a long time. There was a wave of intimacy between girls in junior high school at that time. Girls often kiss each other or do some intimate actions, which makes people feel shy, but somehow they feel normal.

There is one thing I can't accept except the over-intimacy between the same sex. Although two people have a good relationship, they should enjoy everything. Just like a cup for drinking water, it feels like there is no such thing as drinking. In my opinion, it is very impolite, disrespectful and unsanitary, but I don't know why some girls don't care about this sanitary problem at all.

Generally speaking, the communication between the same sex can be a little intimate, but we should also master a degree, which cannot exceed the acceptable range of the other party, otherwise it will bring uncomfortable feelings to the other party psychologically and may affect your feelings over time. For example, those girls who love to drink my cup, and then I began to stay away from them very tacitly, because I really can't ignore this health problem.