Subject
A 'manly' word to replace crush, however generally it means something more than just a crush would imply. While a crush could be either someone whom you simply think is attractive and could be someone like a celebrity and etc., this one solely relates to someone whom you've known and fallen for due to their personality.
Example:
Ex. "Who is the Subject?"
"I AM THE SUBJECT"
Ex. "Who's your Subject?"
"My Subject is Asuka Langley"
Ex. "Who is the Subject?"
"I AM THE SUBJECT"
Ex. "Who's your Subject?"
"My Subject is Asuka Langley"