Crunchyroll has prepared me for this post so well!
The general romance Anime's where the main character who is the male love interest, is just a shy, nerdy and loner type.
I can list way too many just from my Crunchyroll watches. It is a sad over use that could really do with an update for sure.
My current example will be DON'T TOY WITH ME, MISS NAGATORO.
This romantic chemistry works so it's going to stick around for several other shows in the future. If the older audience had gotten used to it, remember that there's a new gen of teens enjoying the medium and finding joy in it.
Bleugh
It needs some changes to keep it fresh for us oldies over here!