I [mtf] got invited to my college straight [m] secret fuck buddy’s wedding

This is a story that happend recently. I am a 25 years old beautiful looking trans fem, 5’10” tall, thin, smooth pale skin, long legs, great ass.
I’ve got invited recently to a wedding of a friend (let’s call him Mark), more precisely, a secret fuck buddy, back in college. I finished college 3 years ago so that’s not so far away either. Anyway, we went apart after college but kept contact through social media in a pretty superficial way, although he would “react” to my thirst trap pretty much all the time.
I knew he was dating girls already back in college days, and I also got to know that he was since almost 3 years in a commited probably exclusive relationship with this girl that he started dating at the end of college I guess. They got engaged and I got invited to their wedding. I was a bit surprised since we didn’t exchange much those years except some small talks through apps, but we also have friends in common and I suppose we were quite close as “friend” for almost 3 years so I didn’t overthought the gesture. I was not living so far from where the wedding would take place, around one hour by car so it wasn’t much of an effort.
Whitout explaining everything about our previous relationship (that may be a story for another time), I must admit that the news of their wedding was a bit shaking to me. Of course I never truly let myself develop feelings and I was making sure that I was keeping myself occupied with other people as well but he was someone important to me, and I kinda wish maybe deeply that he would choose me in a certain way although I knew that he wasn’t ready to date openly a trans person… I was quite excited to see Mark again even in that context, cause I know I would have my little revenge. I don’t know the girlfriend very much, but the few interactions we had in campus were polite but tensed. I could see she was feeling threaten by me in a certain way. Of course, they were starting to date with Mark but I think she could smell that something happened between us cause our chemistry would show. I was not too jalous of their relationshitonship at that time cause it was just the beginning and as I was still fucking with her boyfriend I didn’t take their thing to seriously. But when I saw later on that they were serious it kinda pinched me. also I am someone that like to get what she want so not being the one the be chosen kinda hurt my ego not gonna lie.
I like to be noticed when I’m in public specifically with the way I’m dressing even though socially I am shy and calm. So I know I would go dressed in an appealing way just to make sure he would keep staring at me. If he was still the Mark I knew from college, I knew he would totally fall for my cheeks in shorts. I wanted to be unforgettably hot and sexy still keeping it “classy”. I dressed up with knee high heels white boots, a cute white top that would emphasize my small and round hormonals boobs, and of course some shorts that would totally fit the shape of my bubble butt. They were so short that u could see my sexy white lace thong coming out. I felt fakely innocent. I felt slutty being on the very edge of decency so I knew perfectly that I would be the center of attention. Especially to all the horny straight boys.