Nick and Kate were teasing Matt as they knew how much of a gossip-monger he is and it must be killing him to know that Kate and Nick already met Rachel's crush and he didn't.
The thought of teasing him made them more happier and they decided not to let him off easily and tease him as much as they could.
Matt was getting frustrated with these two. So, he angrily messaged on the group.
Matt: What the hell is with you two, at least tell me something about this crush of Rachel, please I beg you two.
Nick: It seems the feelings between these two are mutual, currently he is lovingly looking at Rachel
Matt: Wait, you guys are all together right now?
Kate: Yes, we are having lunch together
Matt: Send me the address, please I will come too
Nick: No
Emily: Woah, that's awesome, please send a picture of them together
Nick: No, until Rachel gives her permission, I can't