Me and my ex dated for 2 months but he broke up with me because he said that he had a lot of things going on. After 4 days, he texted me to ask for sex and ofcourse I declined. I cut him off after that but then after 1 week of breakup, I learned that he's already seeing another girl and they even had a matching pfp. So I speculated that he may have left me to be with her so I talked to her and asked her when they met. I confirmed that he didn't cheat. I warned her tho and sent her the screenshots of my ex still feeling entitled of sex after just dumping me. I told her, "She needs to be careful of him because he doesn't take relationships seriously. If she wants a serious relationship, he's not the one. And that's because when I asked him again why he dumped me, he said that he wants to try other girls." Before I talked to her, my ex came to ask me not to say anything to her and I promised him that I wouldn't if I find out that he didn't lie about anything but then, I remembered he lied about loving me because if he really loved me, he wouldn't develop feelings for someone else in just 1 week. And that's when I told her because I don't want her to go through the same thing as me especially because he's really good in deceiving people. My ex told me after he found out that I told his love interest everything, that I'm very immature because I told her how entitled he felt even after we broke up. Was I really in the wrong position?
Is it wrong to warn my ex's love interest that he is a jerk?
