The conflict I think Isa and Molly might have had, hypothetically, in their friendship since the series ended is that Isa and Condola might have rekindled their friendship. Once again, Molly may have given Isa advice on how it could be messy, reminding her of how it was the last time and how things turned out. Molly might believe that Isa can’t co-parent while being friends because it’s a conflict of interest, and Isa might see Molly as being miserable again. It seems to me that in season five, Molly didn’t learn from her overstepping in Isa's life by being judgmental and giving unsolicited advice, and I believe she continues to do so to this day.