men living out their teenage fantasies

Six chapters in, they're both still in college. It's the mutual feelings of childhood sweethearts, but clearly the MC's fantasies were not aligned with the ML. While the ML is thriving with recent developments, the MC will still need some time to adjust his mindset and worldview.

ML's middle school, high school, college... he's had years worth of fantasies.

It's impossible to fathom just what is going on in ML's mind, but it's clear that by high school he was already crushing hard.

--Someone in the comments theorized this could be ai-made. I noticed while reading that something felt off. Maybe there is a connection there.