Reproaching Eva to just "eye up" guys is a misogynistic double-standard. As if the MC doesn't check out other girls. I doubt you play him faithful to Eva.
		
		
	 
So, you are banging someone and you bring him/her to a vacation with your friends. Then that person makes their desire known openly that they would willing fuck your friends right now, despite before indicating that there is a 
possibility of you 2 becoming more later and that you are both technically dating each other atm. It's not so much a double-standard as it is rude of that person to say that stuff out loud even if true. Even the MC in this game hasn't done that from what I can recall, but I could be wrong. It just feels like a lack of respect for the person you are with imo.
If I also had my way, the MC's in these games would stop staring and saying stuff like they are 15 years old and saw a woman for the first time. It's surprisingly ez to find a woman hot without drooling and becoming an idiot who can't think. A little maturity, respect, and class never hurt anyone.
If she is going to be or wants to sleep around with others while "together", that is info I would have liked to know beforehand so I can avoid her. Not saying it will happen but that's the feeling she gave off.
I admit though that my MC is indeed a huge slut, but this is also a harem game...so I'll learn to get over it somehow.