Abba – if you work in the school system (as many of the people I know do), you are off the whole summer.
Israeli society in general (and particularly for Frum girls) is less career-oriented than American society, I think. Frum society tends to consider marriage more important for Frum girls than career.
I’m not saying that giving up one’s job is not an issue, but society does tend to feel that getting married is more important.
L’maaseh, usually people will just go for the summer, and only stay longer if they have a job in the second country and/or they are going out with someone specific and it is going well.