How to get revenge on an ENFJ;

I started contacting an ENFJ guy. We met just as an older brother and younger sister, so I assumed we were just trying to get close. But then, on my way to work in the morning, he said, "I don't want to go to work, I just want to hang out with you," so I figured he had feelings for me. I actually had feelings for him too, so I flirted a little bit back! It was definitely the right time to confess, but why isn't he doing it? I decided to try and have a proper date, so I deliberately steered our plans toward ending at the Han River and some drinks.

Over the weekend, I watched a movie, went to a cafe, visited the Han River, and had some drinks. I didn't intentionally look at his phone; I just glanced at it while coming back from the restroom and saw him texting a woman. I tried to let it slide, thinking they were just close friends. But since I ply him with alcohol and deliberately pour him drinks, he started getting a bit tipsy. I tried to subtly probe him, but his response was a bit ambiguous. When I got home, I contacted his acquaintances on Instagram and dug deeper, only to find out he was in contact with and dating several women. I feel so wronged that I want to die, and I really want to get revenge. What is the best way to get revenge on an ENFJ?