What is the constellation that conflicts with Gemini?

Because Gemini is easily influenced by Pisces, it doesn't necessarily make mistakes. My sister is Pisces and I am Gemini. I like her very much ~ Pisces is a constellation that combines the advantages and disadvantages of all constellations, so it is inevitable that sometimes they will feel willful. I have a friend in Pisces. She's always pestering me. Sometimes she feels a little annoyed, itchy and sometimes cute. It's hard to say whether she hates it or likes it.

The constellation opposite Gemini is said to be Capricorn. In my mind, this is an offense. I have been in contact with many Capricorn. Sometimes the conversation between them suddenly falls into awkward silence, which is very strange. I don't know why. Anyway, the personalities and topics of both sides are inexplicably out of place. Pisces and Gemini are fine.