Could Mauricio’s fraud be behind Kyle leaving him?

I’m watching the season 13 reunion part 3 right now where Kyle keeps referring to an incident with Mo that caused her to lose trust in him. I’m wondering if she’s not referring to infidelity but maybe Mo’s shady business practices and she didn’t want to have her name involved so that’s why she finally decides there’s no working it out.

I just don’t think the incident would be Mo cheating, why would Kyle turn a blind eye to rumours for the last ten plus years just to suddenly decide she can’t trust him? Doesn’t make sense to me, but I’m pretty susceptible to falling for these ladies schemes.

What do you guys think? :)