Your are right... Key word is "saath" and that is next phase..... He will tell that he will be with her till she wants him but I think he will not be able to give the saath that Malini wants... it would be more in the friendship or as a courtesy to their relationship and the kind of the redemption of the mistake that he has committed towards her by marrying her. It might also be the realization track for Malini that she can force Aditya to be with her but she cannot have him anymore.....no hopes there though.
I am not sure if Imlie will be back in hostel, PD (as that avenue is now open) or T's. I think Malini will make sure that she is at T's just to show her how happy their marriage is and do the "mithi shuri" taunts on the side.
Saath toh hai hi.didi ka but imlie ke liye kitna saath hai.as they used that as a keyword toh their rishta too.. and while I do not doubt adi ki neeyat or think he can palti maaro jo karega bare minimum.hi kareva.. he doesn't look half as bad in precap too.as he has been with Imlie at her injuries but remains to be seen if he realizes that and if he gets to talk to.imlie at all ...abhi toh I am seeing them drowning in their own guilt.. what they need is to.talk but that part is.conviniently omitted ..