One phrase can be interpreted in many ways depending on, who's saying it, what the circumstances are, just the context of the phrase...."I love you". Sometimes said as "I luv you", "I love ya", "I <3 U", get my point?
Its true that you can love someone and not be IN love with them. Like when man and woman are just friends, they love each other, but that doesn't mean they want to get married and have children and spend the rest of their lives with each other. Women seek that kind of love, we as species yearn for it. Men....just... take it as it comes.
So whenever we say this phrase to each other we should make sure that the person we are saying this to knows in which context we are meaning. Its one thing to say "I love you" and just mean it platonically to a friend of the same or opposite sex. Its another thing to say "I love you" to someone who you are dating. Do we see the difference? Its seems like this should be black and white, but there is so much gray.
Imagine you are dating someone, you have a sexual relationship, you are pretty much in a full blown relationship. You even say those words "I love you" to each other. Now, they way a girl would see this, is as being in a relationship with someone who is IN love with her. The guy just means its a platonic love because they haven't said out loud that they are "boyfriend/girlfriend"....
Can you start to see the gray?