I despise the word enemy, so let's say old acquaintance to refer to them. So my ex-best friend, who I knew since kindergarten, would always try to put me down by insulting me or making me feel less important. Back then I never really noticed any red flags, but looking at it now, I realize how much jealousy can affect an insecure person. One day at my crush's bday party, she would purposely try to make me feel jealous or touch him a lot (in front of me obviously), when she knew that I liked him and there were probably chances of him feeling the same, but that's another story I don't want to get into right now. She just couldn't stop being with him after that, and she would upload stories with him on social media, text him, compliment him, etc, and it wasn't even the fact that they were already pretty close before I told her I had feelings for him, she wouldn't bother talking to him. Long story short, she kis sed him 2 times, it was honestly my last straw. Funny thing is, I don't get jealous easily, and If I happen to, I just have control and make sure I don't hurt anyone because of it, so it wasn't at all about the fact that she stole my potential bo yfriend. It was the action of it, like “I don't respect you and I don't care about your feelings” kind of action, which made me purely disgusted and disrespected.
