They dont. A chapter shows them already done with Sex and Agawa doesnt seem that satisfied. Remember the last five chapters are like 3-5 days in the manga timeline, so they just fuck regularly it seems (but she doesnt look satisfied). Id say this is the second time those two fuck.
Yes I would say that too. We don’t even know if it is the new fuck buddy because we don’t see the face of the guy. Could also be someone else because the guy here has a darker skin tone. But like you mentioned already she doesent feel satifised with whom she is doing it. Perhaps we will see something like this until the end of the arc.
If Inuaki manages to bring Akito to a love hotel Agawa could be the person to free her from him. But the question is how: will she take her and leave the hotel or offer herself (to get satisfaction again, but it will not work). I hope that we get rid of Inuaki at the end of the arc with a complete break down after he lost to gotou.
I would assume that even if Agawa busts gotou fucking the Prez or akito she would join them on account of her thirst of lust after nobody deed her good. But who knows.
Thanks for the translation !