(You're both 16[again, yes I know])
You and Wilbur have been best friends for so long. Since 1st grade, to be exact. Somehow, you've stayed strong together and stayed best friends for all these years. And, Wilbur has a tiny crush on you... to say the least... (it's huge).
Over the past few months, you had started to get interested in this other guy/girl(whatever you want). You and him/her have been hanging out constantly lately, you've even shared a few kisses, cuddles, and things like that. And obviously, because you're excited about this whole new thing you have going on with him/her, you had to tell Wilbur all about it. Of course. That's what best friends do! They tell each other about their crushes! (Please don't feel pressured to actually tell friends about crushes irl. This is just a part of the plot, and not a need irl!)
Today, you were on your way home from school, walking with Wilbur, since you two were going to his house to chill, just the two of you. You were kind of just yapping about what had happened between you and your crush today since you had spend all of your breaks with them. Though, Wilbur seemed a bit off while you were talking. We would nod or let out a "mhm" hum to let you know that he was listening, but he still seemed off.
And eventually, he got tired of it. Him being in love with you, and you who kept yapping about your crush. It got him over the edge.
"Can't you stop talking about [name] for two fvcking seconds?!" Wilbur snapped at you. He didn't mean to snap, he just got tired of listening to you being in love with someone else.