Is this true about persian girl???

is it ture that persian(irani) girls will be all sweet to her bf and his family just for fun. this will show the guy that she cares about him BUT she has no intenstion of marrying him in future. why do girl do this. i tought only guys are always dooing dramas to wooo a girl.lol i have a friend , he likes a irani girl but she said she will only marry him if he convert to her culture and get a high degree and fullfill her other requirements lol is this love? what if he no money to complete his study. is she only after his money?? i really care about my friend. i heard this gf is just having fun with him, she KNOWS her bf will do anything to marry her and she is trying new experiments to see if he agreeor not. i can;t tolerate this, if i tell my friend, he won't like it and prolly won't believe it . you know what they say "love is blind" but my quesiton is are persian girl reaaly play with guy's feelings just for fun?????????????/