Sarah needs our book help! Oh this is totally my trope. I love the whole falling for your penpal and roommates too, and this has both!
She asks:
Hello!
I read this book a while ago and wanted to reread it but can’t seem to remember the title or author.
So the fmc would email or message this guy, sort of like a penpal thing. It wasn’t romantic they were almost like best friends but they didn’t know each other.
She ends up becoming roommates with her brothers friend and they live together. Slowly they start developing feelings and they seek advice from their penpal without realizing it’s actually each other.

Gauri needs our book help! And I LOVE military romance especially with that slow burn of letters and a developing romance (and maybe a feeling of unrequited love too). Eeeeep! 😉