This is soooo sad :( I hope he realizes that you deserve him more than your roommate does, just like what happened in Taylor Swift's You Belong With Me.

Also, just a few minor corrections:
Roommate's Boyfriend
Tantrums not tandrums

Thank you!

Wow, that was great. I liked it a lot.

Those last four lines are very powerful, almost bringing me to tears. This is very good, thank you for sharing.

Wow, loved it. What I think I liked most was how relatable this is. I think we've all liked a friend who will never look at you that way. That feeling of knowing you'd be great together but they don't notice it comes across so well in this. I also liked the structure, it flowed and was very poignant. The only thing I saw was tiny: it should be "advice" (noun) instead of "advise" (verb). Great job! :)