guest4 and nepe - i think you guys are saying the same thing or at least in the beginning......
let me help out:
nepe says:" if we invest a genuine love, we expect a genuine love in return. If we invest a genuine sex (a fake love included), we know that we can not complain for not getting a genuine love and getting only sex or getting a fake love."
and then,
guest4 says:" how is it a genuine love when you expect nothing-sort-of-a perfect reciprocation for your feelings, something so abstract. That tells me, its not genuine to begin with."

you are both saying that there is some form of reciprocity involved in genuine love, which I agree with because i do believe in the social exchange theory of relationships and i think this very much applies to love because we’re dealing costs and benefits. you give something you expect something in return.

guest4 now you're saying: "I am still not convinced that a lover who expects genuine love is still a genuine lover." didn't you previously state one needs to "expect" some thing in return? you’re being contradictory now. and i also feel like you're refusing to look at the fact that there could be many forms of love. it not just genuine love, there's ideal love, passionate love, empty love etc as shown by Sternberg's Triangular theory. And now you're bring in consummate love to indicate that such cannot exist. consummate love is the ideal form, it's the perfect kind of love.(according to the theory) and if you were to say that there is no such thing as love (that is love from your point of view) then as classified by sternberg’s theory which is what nepe has brought in and is the most widely studied theory of love it would classified as "none love". this is still a form of love.

copycat – that is quite interesting…..

looti – watching too many bollywood movies these days huh? i have to agree with nepe i don't think it’s a switch that turns on or off. but its all theories…who cares whatever right!?! :D

nepe – i would like to read your additional two theories, anyway for you to briefly translate the nepali?

as to answer the question of this thread it has been shown that men are more fearful of sexual infidelity than emotional infidelity where as women would be more upset by emotional infidelity than sexual. Looking at this from not an evolutionary perspective but more a socio-cultural viewpoint men believe that if their female partner were to cheat on them then there must be an emotional component involved, which in this case I am referring to love. it’s a little bit of stretch but one could conclude that sex for love is the more appropriate/correct term because both men and women are affected more by the emotional component of infidelity. just my opinion though! :)