Jack and Eric are gay together exhibit C:
Jack: Eric, I have to tell you something about me and Rachel.
Eric: You're not comfortable around her?
Jack: No, I'm comfortable around her.
Eric: She's not that good of a kisser?
Jack: No... She's a good kisser.
Eric: You don't like girls? You know, cause I thought...
Jack: No. I like girls.
Eric: You just think you like girls.
Jack: No, trust me, I like girls.
Did I mention that I win?