Why do females act so self riotous?

i went to pick them up a girl i known for 3 years we are just friends took her to eat she bent over RIGHT in front of me when i was putting my cc away so i slid it lightly between her cheeks :) and said that should pay for it. she was pouting the whole night but just earlier that week we walks right in on me while im pooping to get something and leaves the door open and does crap way worse.