She’s saying that love can be ‘short lived’, which means it doesn’t last long.

Definitely a jaded, biased view from an obviously unhappy woman.

I agree, her view on love is quite dim. But I am sure there is more to it than just the surface, because there always is. It’s almost on the same line as "this too shall pass." Almost…

It could go beyond the surface: love is what happens at first, and then as the love–as in "new" love–passes we become complacent; we get comfortable with what is and move on from what was. This is not to say that a bond does not exist, but, rather it is moved beyond just love, or at least the excitable love that captivates us all. This is only the slightly less pessimistic view.