I got mad at my ex for starting a new relationship so soon, but I've been sleeping with someone else

This is really hard for me to admit. I feel like my normal attitude is generous, fair, and warm, but I've done something that makes me contemplate my true nature.

My ex and I had a terrible sex life. Absolutely shit. He was a 7 minute man and never got me to cum, and as a result i lost interest pretty early on in the relationship. I never even had the wandering eye, but I just wasn't interested in sex with him because he was shockingly bad. I fucking loved him to death though, until he started raging at me every night. If he didn't rage, he cried. I thought he was going to hit me a few times. After that, my love severely faded, but I was scared of being alone.

He eventually dumped me on our year anniversary. I cried, but secretly I was a little relieved. We got back together a few weeks later, and we had amazing sex, but soon there-after, the sex was back to shit, so eventually I ended it. Almost immediately after ending it, I already found a new lover. I had no desire to date this man, but he just turned me on to the point to where I couldn't control it anymore and...

..the sex was the best I've ever had. And while being totally casual and honest about the whole thing, i've had more fun with this gentleman for the past month than the entire year of dating my ex. I have sex with this guy everyday, for hours. We go on dates, we have the most entertaining and interesting conversations, and i've never been more sexually satisfied in my entire life, on top of feeling wonderful about meeting someone who meets my every standard, most of which my ex lacked.

I feel guilty that everything my ex wanted, I am doing it by the tenfold with my new lover.

After one of our amazing dates last night, I decided I'd like to have dinner with my ex and catch up, extend an olive branch, and let him know I still care about him. I felt completely over him. And then I saw he has a new girlfriend. I felt territorial, angry, devastated.

Made a big deal about it, we blocked each other, and I've been crying since.

Now my new lover is on his way over with wine, food, and sex toys. He has no idea why I've been sad, but I know he's going to fuck the sadness out of me.

TL;DR I have double-standards and flipped shit when I learned my ex is seeing someone new, despite my frequent sex/dates with someone I like more.