Looks like Alexis is about to tell you what she has been hiding. I assume the person that she needs to talk with first is Erynn.
With how Alexis and the MC are now feeling, she can not delay any longer.
Time-wise, how long has the MC been back home? Alexis says it has been a few days, but is that days in duration or time spent together?
For me, part of being able to accept her will be how long it has been and why she didn't say anything sooner.
The 'I wish you never left' comment supports the theory that it is to do with MC, Erynn, Alexis and the reason you left.