I think that the Tanya situation has more to do with the fact that she was completely optional in the beginning. This puts moonbox in a corner development wise as it doubles up work for a single scene (one with Tanya, one without) and she kinda falls out of any natural grouping / FFM stuff at this point (think O'Reilly family, Liz and Kat, Church Group, etc.).
I think that Saunders going back to College and telling the other girls where MC is could be a good point to introduce Tanya again with a different storyline depending if you pulled out or not. Its up to the dev if they want to or not though.
Feel like shit just want Abe and my big titty goth girl back...
If you pulled out, there's no Tanya problem. She's never seen again, or is even mentioned.
The issue stems from the concept of side-girls. And side-girls pregnancies.
Tanya is THE ex-girlfriend that shows up and "Surprise, you're gonna be a dad.". That was the whole idea. I don't think that MB even thought about what happens when a pregnancy ends. She was meant to be a gag. That's it.
She's not meant to be the mother of his first child. She is. But not really. Because she's optional. Because she's a side-girl.
So, the problem is not that she's optional. It is because she's a mother. Of MC's first child.
This creates 2 alternate realities. And in the one where she exists, she's mostly a side note. A passing thought. That IS the problem. In the reality where she doesn't exist, everything is fine.
Apparently, from the image posted above, there seems to be a scene with her coming. A side-girl scene.
Again I'll say, if I ever replay this, she's going to fucking Italy. I prefer that to have, as a player, to deal with this feeling of being this type of father. In fact, if I ever replay this, no one but the main girls will be pregnant. It is the only reasonable way to not be just an Impregnator.
YMMV.
Peace
