Is “love” a very serious word in Western(especially in USA)? When I saw some American movie or television series , I found it seems that the word "love" is a very serious word which cannot talk to each other easily between two people who are in relationship. It's even more easier to have sex than to say "I love you".In the movie or series, when the heroine hears "I love you"which said by the hero accidentally ,it seems to me that she is always overreacting. Moreover, seeing the heroine acts like this, the hero begins to be nervous just like he has done something terrible.In The Big Bang Theory, "I love you" even leads to the broken-up between Lenard and Penny! In China , the word "love" doesn't work that way. When people fall in love, it will be extremely natural to say "I love you".No body will show any nervous or uncomfortable. Relative to say "love", generally, it's much more difficulty to have sex. So, is there anyone who can explain that to me? What love means exactly to you people?