Rigby, as we know of, does not like anyone right now. But to me, it seems that his relationship with Eileen has been progressing maybe into something more. But as we know, he doesn't like anyone.
Well at the time its only Eileene that likes him but he dosent like her back. In camping can be cool episode Rigby shows a little feeling for her,and in Butt Dial he only gives her her celll phone that dropped in the coffee, so there really isint much progress yet that we know of
Well Rigby "Thinks Eileen is Hot without her glasses on" but its really up to J.G. Quintel On where to take Rigby as his character progresses. Rigby has been seen in the episode Play Date watching a movie With Eileen at her house but Rigby could have just been watching the movie with her as a friend. Like I said before, he currently dosen't have a relationship, Its up to J.G. Quintel. *Eileen is my favorite character on the show though*
Eileen must be it. I mean, Rigby claims she looks hot without her glasses. The two have actually had a better yet rocky connection like in Video 101 where he suggested to help her with the music video. In "Camping Can Be Cool", they played head to head in a game console and she pointed out a star's name without looking up. Rigby would think it was cool by saying "Ooh, and she didn't even have to look up!" The two would laugh together. They played cards together in "Family BBQ", and Eileen trained Rigby in "One Pull Up" as Rigby starts to find her useful. "In The House" had Eileen in a portrait in Rigby who transformed to a house. I hope you find all this useful.
GUYS GUYS!!!! He is obviously in love with Mordecai. Think about it. How did he treat Eileen for like the first 3 seasons? He treated her like a waste of time. Like crap. The ONLY reason he seems to like her now (kinda) is because he doesn't want to ruin his friendship with Mordecai! Also, he hasn't shown any interest in girls from the start! When ever Mordecai ever MENTIONED being alone with ANY girl or inviting a girl along with them somewhere, Rigby would get really pissed and secluded. And he hates touching and weird remarks because he doesn't want to give it away. He LOVES Mordecai. IT'S OBVIOUS!!!