I'm in the process of watching the episodes of Seinfeld again. So two days ago, I watched the episode where George has decided (just out of the wild) to date his cousin Rhisa.
It's clear out of the blue.....you never had seen her before, and wouldn't ever see her again.
The portrayal? Laurie Taylor-Williams did the acting job, and what you get is some dazed cousin of George....who seems to have burnt a few brain cells....drank a fair bit of wine in life, and probably smoked a bit of cannabis.
It's about eight minutes into the piece that you get introduced to Rhisa.
George needs some gimmick to get his dad to react in a certain way of 'disapproval', and he's figured....if this cousin relationship was exposed, he'd achieve results.
George and Rhisa then meet at some restaurant, and George is hinting at some suggestive but fake relationship. Rhisa? She's sipping wine pretty aggressively and you get the impression this is the 3rd glass in the last hour or two. It takes less than 30 seconds for Rhisa to agree to the relationship but in her mind....there wasn't going to be fake stuff (George is caught off-guard on this moment).
So you only get two scenes with Rhisa (one at the cafe, and one at the van in the woods at the end of the episode).
This whole storyline with Rhisa? You could have built this up and had her in forty-odd episodes, but they never bring her back.
This episode? It came early in the 9th year, and you just have to wonder if they'd done it in the second or third season....maybe the story would have expanded out.