Hi - I watch the show in England and I look forward to Tara's reviews now more than the actual show :) I find the new sofas which are in every participant's house so funny since Tara pointed out that they all miraculously have them - I wonder if there is a special Catfish list of sofas to choose from! Although I guess they didn't feel like giving Melissa one in this episode, as at her house Nev makes a point of saying "It's a nice day, let's sit outside...".
So, I have been noticing the decor in all the rooms used in Catfish more carefully these days - and I am 100% certain that the investigation room in this episode has also been used in one of the other episodes this season. I recognise the unusual pictures on the wall that look like out-of-focus car lights, against a coffee coloured wall. I can't say for sure which episode (and perhaps it was a bedroom not investigation room too), as I don't have the episodes taped to go back through, but I think it was a fairly recent one.
I wonder if the investigation was taped again afterwards, so that they could change something - after they realised the type of guy Vince was? It's hard to see how it couldn't be staged, if it was filmed in the same place as another episode.