I know this needs some serious backstory so, I (21M) have always had a rocky relationship with my dad, my mom died when I was small, so I never met her, i was left alone with my dad as a single parent. to put it lightly, it was rough, he was a borderline alcoholic and just a jerk to me growing up, and most of our conversations were just screaming matches, which was what I grew used to. Obviously I hightailed it to a university a whole town away as soon as I graduated. But about a 2 years ago he contacted me to meet up, which we did, and we had a genuine conversation. I barely recognized my dad anymore, he was sober and fit (which is kind of embarassing to have your dad look better than you.) , which shocked me. He apologized to me, telling me about how he started going to therapy and telling me that he messed up when raising me and wanted to reconnect because I was his only son. I needed time to process what he told me, but I eventually let him back into my life and we started talking every week and having monthly dinners like a normal family. From then on life was great, I had an apartment with a roommate, a good job and a dad that finally supported me, but the final thing I felt like put everything into place was this girl in my newspaper club. I'll call her Ellie, (22F), she was like the perfect woman. funny, kind, generous and most of all, beautiful. We started dating about a year after reconciling with my dad, and she was what I was missing in life. She motivated me to go to the gym and get better hobbies, and I was just the happiest man in the world with her. But I definitely had my shortcomings in our relationship, where I was getting issues with how she interacted with other boys, and I know, it was the insecurity talking, but I didn't know that yet. about 6 months ago we had this big argument, the first one ever, and the last. I started getting frustrated and did what I did best, I yelled at her, expecting to get the same thing in return, but instead she just deadpanned and walked out of my apartment without a word. I didn't hear from her for a week, just for her to show up at my door, dropping off all the hoodies I gave her, telling me it was over. I tried to fight for us, but it was for nothing, and she left anyway. I was broken, and couldn't go anywhere for comfort, cause my roommate just laughed and asked for her number. (he's an asshole) but my monthly dinner with my dad was approaching, and I hadn't even mentioned Ellie to him yet, hoping to introduce her to him eventually, but there was no point now, so I went anyway, spoke to my dad about anything but Ellie. after dinner he asked me for any restaurant recommendations around here, telling me that it was for a business affair. I didn't press him about it but gave him one anyway. 2 months ago I started getting weird vibes from my dad, he started being more secretive, so I caved and asked him, and he told me that he started dating this girl, and asked me if I was okay with it. I laughed it off and told him we were both grown men and I didnt care as long as he was happy. he went on to tell me that she was on the "younger" side ,which had me skeptical but he told me she was 23. I brushed it off asking him about her, and he showed me a picture, it was Ellie. I swore that I felt my stomach drop, and I felt my sanity just snap, I cursed at him and told him that I dated her, and in a fit of anger I just yelled and told him I hated him. this was a week ago, and Im not sure what I should do, he's been calling nonstop, and I just need advice on how to handle this. I was kind of an ass for saying all of that, but am I really in the wrong for feeling a little hurt?