So do you think that this message is from 2 years ago or fairly recent?
its impossible to tell, maybe that message isnt even about why she left 2 years ago, could be about how they got the tickets and that she would be at the club that night and it was a plan of hers to see the mc again, as its been mentioned in here its a possible the tickets come from steph, maybe her or husband have something to do with the club.
if the message is about why she left, then chris could be just as bad if he knows about it and let his friend suffer for as long as he has.
Then maybe Steph isnt the villain we are lead to believe she is, who is her husband Melvin exactly? is he someone who took a liking to steph and threatened the mc if steph didnt leave him?