She doesn't actually love you for your self and uniqueness, but what she gets from being with you, what you provide for her and once you stop providing that or stop giving her that feeling or once that lifestyle evaporates, so does her love for you.

This is a hard pill to swallow for a lot of men, but many more men have had to face this truth the hard way. So at the end of the day, you may love your girlfriend, but she only loves how you make her feel and what you provide for her, like emotional security, financial security and so on. At best she can like and respect you, but she won't love you.

This isn't to say all women are like this, maybe some women reading this post aren't like this. But the fact still remains that most women are like this, which is why many different men in different parts of the world have come to the same realisation.