Venus

Venus was always angry and frustrated, almost never happy, only in moments of despair or something like that, maybe nobody knows what the reason for her anger is... Mercury and other planets know, they know about Theia, a charming planet that was the heart of Venus, Venus was completely in love with her and was willing to do everything for her, the bad thing is that Theia fell in love with Proto, Venus already knew that but she tried, she did everything so that she would only love him, but she knew it was impossible... When Theia realized it, she didn't know what to say, and we assume that she rejected him and then crashed into Proto and boom... they collided and formed Earth... that's why Venus is a little nicer to Earth...