I wonder how much it matters to nepali guys whether the girl they want to marry is virgin or not?

you can only expect as much from a girl, as you expect from yourself. if you are not a virgin yourself, then you cant posibbly hold that against a girl. but yes, if you yourself has saved it for marriage then i guess you can expect or rahter want that.

but i thihk that only applies for love marriages.

if you're in love, then i guess that doesnt mater, if he/she has slept with someone else or not,

like de say, gadhi pa dil lagi to pari kya chij he.

* correction

but i thihk that only applies for love marriages = arrainge marriages

Virginity is very, very beautiful, and like Manison said, I think it would be a fair game to expect a virgin partner if one is virgin, too.

Marriage is more about love, trust, and understanding; so they play more important roles. If one is ready to accept the partner who is not virgin, but who has much love to him/her, then s/he (the one who is ready to accept the non-virgin partner) just have a bigger heart.