B&B
I think the reasons Aly and Ivy are bugging Liam are diffent. Aly is an annoying little gnat who is obsessed with Liam and Hope being together. Ivy, however, is smarter. She has been keeping up with Liam and Hope in he tabloids.
She knows that Steffy's lies and manipulations only brought Hope and Liam closer in the end. Ivy wants Liam all to herself, and for all bridges to Hope to be burned. She wants Hope to know the complete truth, and probably thinks that Hope will choose Wyatt anyway (the woman DID marry the half-brother of the man she "loved" for years; if she really was that into Liam, it wouldn't have happened).
If that happens, she looks like the good guy to Liam and can swoop in and help him move on without interruptions. Whereas if she tried to do that without Hope knowing the truth, people might think she was being manipulative and Liam would still be wishing that Hope knew the truth about Paris and would take him back.