What are the characteristics of people who have good rapport with the same sex but not with the opposite sex?

I think he is the kind of person who is as stupid as a husky in front of his sisters and as cold as Mount Everest in front of his brothers. Same sex: sisters. Opposite sex: Don’t touch me. I'm never nervous when talking to girls, but I get nervous and blush when talking to boys. If I stutter if I have a crush on a boy, I can only say a few words online. With a girl, you can say, "Yeah, I love you." With the opposite sex, you can say, "Oh, okay, no need." Opposites of the opposite sex can only get along with each other if they are brothers. When chatting with people of the same sex, all kinds of jokes come out of the mouth, and with the opposite sex, words like um, okay, thank you become the topic terminator.

Girlfriend: I miss you, I love you, want to sleep with you, and want a man. Opposite sex: Well, I either don’t talk to the opposite sex, or when I talk, I only talk about business, and I talk about everything to my colleagues. Or maybe it’s because of his appearance. He looks fierce and is hard to get close to. In fact, he is a very gentle person, but he is not good at expressing himself. People who don’t know him well don’t know he has this personality. Maybe it's the kind of person who looks distant, the kind who won't dare to touch someone of the opposite sex after being together for a long time.

This is really me. The girls around me are more beautiful than the other. No matter how good-looking the girls are, they can become friends very quickly. But I want to chat with a boy all day long, but I feel like I can’t continue the conversation after just a few words. You can brag casually with someone of the same sex, but in front of the opposite sex you just feel that your emotional intelligence is low. If you ask me what are the characteristics of people who have bad rapport with the same sex or with the opposite sex, I can tell you all day. But when it comes to myself, I become really cold and helpless.

Same-sex: Sister, I love you, you are the best, I love you. Opposite sex: Boy: If you are busy, I won’t disturb you (subtext: Why are you so slow to reply to messages? You still ignore me). Me: Bye bye then. There are countless topics that you can talk about with the opposite sex in just a few sentences and never say more. Also, you will feel awkward when you are with the opposite sex and don't talk to each other, but you will not feel awkward if you are with the opposite sex.