Attached below is the save file right before the confrontation event with Mei.
The choice I made for the following event are, consecutively:
"Ahh, don't tell me you wanted me all to yourself?", "I was just using her for her physique.", "It turns me on when you're jealous.", "This is hilarious. Do you really expect me to believe you'd **** this piece of trash?", "You were reckless.".
She does say "Now, leave. I was serious before, make sure that ***** never interacts with you again.", but there's no further event where you actually break up with Ai.
The only mods I've used were EXP, talent/trait, resource mods, and increasing my perception to 8000, over the limit of 5000 since I haven't refined it yet.