In a world where 99% of the world population are capable of communicating telepathically, a young librarian who is part of the 1% that does not have the ability, falls in love with a girl who can read his every thought.
An interesting premise.
And it occurs to me that his dramatic problem isn’t just that she can read his mind — so can almost everyone else, right? All her family and friends. All his family and friends. So can the rival for her affection. (There is a romantic rival, isn’t there? It’s pretty much a sin qua non complication in the romance genre.)
In light of the fact, that his mind is an open book to almost the whole world — what must he do? What becomes his game plan to win her affection in spite of the fact she (and almost everyone else) can read his mind?
I’d recommend reading the Chaos Walking trilogy by Patrick Ness. It has a similar idea but the hook (at least initially) is that in a community of all men, where everyone can see/hear everyone’s thoughts (even animals), a boy (I think he’s 12) suddenly finds a patch of silence. That silence belongs to a 12 year old girl. She is the only one who’s thoughts he can’t see and he’s never experienced that so he doesn’t know what to do.
By making it something that flips his world upside down it makes it interesting/scary/new/exciting/different for the character, and by extension the reader/audience.
Why is your protagonist a librarian? What bearing does it have on the story?