Ross finds out about Rachel and Joey and tryes to act like he is fine with that but he has to get drunk to achieve that. He invites them to dinner with him and Charlie and that is when it all begins:). "Ross: And to love. Ah, love. L-O-V-E, love. L is for life. And what is life without love?
Rachel: Oh my god, are we supposed to answer?
Ross: O is for "oh, wow!" The V is for this very surprising turn of events, which I'm still fine with by the way. E is for how extremely normal I find it, that you two are together. And now one day you might get married and have children of your own."
I loved the part where he brigns the fajits without the mitts on and says-that is gonna hurt tomorrow!
On the other side we have Chandler and Monica asking Phoebie's friends about adoption and Chandler accidentally tells their son that he is adopted.... great episode.