Oof, yeah — Knight of Pentacles reversed can definitely be the red flag card in a spread like this. In this kind of context, it can point to all sorts of stuff: laziness, workaholic tendencies, broken promises, even gambling or being super materialistic. Basically, someone who's not exactly the stand-up guy they present themselves as.
So in your pull, I’d read that as highlighting the guy’s shady traits. Then you’ve got Seven of Wands reversed — that screams vulnerability or being totally unprepared to deal with the fallout. Like, she won’t see it coming or won’t have the strength to push back.
Ace of Swords upright is the truth bomb. Something’s definitely going to come to light, and when it does, it’s gonna be sharp and undeniable.
My gut says she will find out, probably not from anyone telling her directly, but more like him slipping up or her starting to connect the dots. That Ace makes me think the truth’s just waiting to crack wide open.
Only thing is… that 7 of Wands reversed also gives me the vibe that it’ll sting if she realizes other people knew and didn’t tell her. Like she’ll feel pretty isolated or let down when it all hits.