given, that they only left the project, because the living-situation with JT was not their cup of tea,
they probably intended to come back from the beginning.
With their experience from the early year, I guess they both know that they can only succeed in their relation if they divert job/business from personal relation.
If they i.e. Kostja cannot stand that, they shouldn’t return, because it would shatter first Kostja, and then their relation.
I consider that Indira was always ready to live “Shana-like”, and she enjoys sex with big long lasting dicks,
and is delighted to get money for it.
Kostja was an unplanned development in that scheme, so I hope they talked this over in their absence from VHTV, like everybody hoped, they had done during their first vacation at her parents.
Other than that, to show up now and then, make some money, and leave might be the better option, because it’s easier to back out if desired.
JMO