Why they should be together:
-She loves him and he loves her too.
-They kissed.
-They are practically best friends.
-They eat lunch together.
-He was hurt when she told him she accepted Ken's proposal. They shared a stare across the hallway.
-He tells her secrets.
-She gets mustard off his chin in a sweet, cute way unlike Terri who tries to be sexy in a public place and make someone jealous.
-She gives him advice.
-They almost kissed during his night shift as the janitor.
-When she fell on top of him during "The Thong Song" they seemed really cozy lying there together.
-How he looked at her in the bridal salon when he saw her in the new dress.
-They danced together almost as if they were at their own wedding(you know they were imagining it)
-They hugged at the football game and then looked self conscious about it afterwards.
-She is actually his only ally in supporting the Glee Club.
-He KNOWS that Emma loves him.
-He doesn't want her to feel heartbroken around him.
-Their kiss was done completely out of love and nothing more. Which is actually quite sweet since it wasn't lust or passion just pure love.
-Will didn't even need words to express to her how he really felt.
-Their lives would suck without each other.