Nah, the love is still there, that's why it's so hard for either of them to consider leaving the other because they know they love each other, they just don't love the situation they're in. Josy even says to the MC in Ep 10, even if you said you had feelings for her, that she "doesn't know" what she'll do if things don't go right with the plan to get the papers. If she was so sure that she wants to be with the MC, she wouldn't say that.
People can be like this in relationships, knowing they love the person they're with but being in a situation that's not ideal and it tests their resolve. But it doesn't test or diminish the love they feel it just makes them question whether they can put up with the stress and the issues they're facing that are causing the relationship to not feel as good as it used to. That's basically where Josy is at right now, caught between a rock and a hard place, and she's still unsure which way she'll go.
Also, when on the throuple, they still both very much love each other and there's no sign of any preference. Having the MC with both of them just makes them stronger as a unit.
It's only "shit" because of the secrecy. Take that stress away and it can easily get better.
Yes, exactly, this is why the Oscar moment was so important for her because it was a harsh truth and made her realise, "Oh yeah, I don't have anything going for me on a personal level", and now she's resolved to do something about it and find her identity.
If you're on the JM path she'll ask you the questions again in Gender Studies in Ep 6, kinda testing your truthfulness, and you gain RP if you get it all right.