But then again you have take into consideration that she was in US for 4 years - sometimes being in forein country changes people...
You've mentioned an important point. Sometimes people change when they've been exposed to a new culture and surroundings.
I'm Polish American and very loyal, especially when I'm in a serious relationship. I feel infidelity is improper, whether it pertains to either gender's actions.
Abcdef's relationship is still in the beginning stage; what I refer to as the animal stage. They've only been together for merely two months. They still need time to see if their relationship will develop satisfactorily.
I suppose it depends upon the individual, in terms of how many men she chooses to date simultaneously. In addition, she must examine her own ethics and upbringing, regarding making her own moral decisions.