Seinfeld Question - "The Deal"

I just watched the episode of Seinfeld called "The Deal, where Jerry & Elaine start having sex again while trying to stay friends.  They want to have "the this" (friendly discourse) and "the that" (sexual intercourse).  Eventually they decide they need to have "the other" (relationship) as well.  But I noticed this time that they actually stay together at the end of the episode! O.o Do they ever mention this again, or are we just supposed to assume that they broke up some time in between this episode and the next one?

Seinfeld is to continuity what porn is to acting.