He isn't the same person I met 3 years ago. He used to bring me flowers all the time, tell me I'm beautiful and be affectionate. Now he's a rude jerk.
Most Helpful Guy
A few possibilities come to my mind. Only you know which one might fit your situation.
1. He was always a jerk, but only behaved like a nice guy to fool you.
2. He's still a genuinely nice person, but *you* have changed and see him incorrectly.
3. He was a genuinely nice person, but became a jerk because he feels like you neglect his feelings and his needs and since it's obvious that you don't care for him and are emotionally abusive so he stopped trying to be kind because it never did any good and he decided that you're impossible to please.