It was really nice to see Mohini going to Tulsi's side rather than to Tripti's. Just like in the raksha bandhan episode where she comes to know about the problems with Billy-Archita-Abhir. There are two thing we know she loves; money but most importantly Archita.
And that mother feeling that Tripti had was shown last epi. She didn't want her children to go, which shows that there are actually some people who she loves.
Mohini loves Archita more then money but Tripti loves money more then her children.