Most Helpful Guys
Maybe. It can't be recent (no less than 10 years in the past), and she'd have to convince me that she had learned her lesson from it. The biggest issue is potential underlying problems that led to the cheating may still exist.
I would go on a first date and probably a 2nd date because it is likely they would keep that baggage locked up for a while. But when they finally unravel it I don't think I could learn to trust them and would need to exit the dating.
Most Helpful Girl
No. You may overlook 1 time maybe but a serial cheater, no way. A cheater can't be trusted.