It is from Flinn's perspective but in the somewhat technicality it still counts. There is a subset of NTR about the guy being stolen even if he's the POV character. Course since we have control over Flinn's actions it ultimatly falls into cheating. It's just that Kelly's dialog seems that if it wasn't for Eric she'd be more agressive in pursuing the relationship wich the entire point of the game.
Credit Amy's boyfriend feels a bit disposable; but it's not uncommon for girls to date guys in an attempt to distract from what they actually want.
Credit Amy's boyfriend feels a bit disposable; but it's not uncommon for girls to date guys in an attempt to distract from what they actually want.