Olivia did her best to keep Noah's words out of her head, but no matter how much she tried, they kept echoing right inside of her head. Why did it bother her so much that Noah had been with Lisa ten years ago? Why couldn't she just get the picture of them being together out of her head? It had been a decade ago, why did she care so much?
Could it be that she was just angry at Lisa for betraying her? No, Olivia was certain that she wasn't angry, in fact she didn't even feel betrayed or mad at Lisa at the moment, she just felt jealous.