Love being in love isnt a constant thing. It doesnt always flow at the same strength. Its not always like a river in flood. Its more like the sea. It has tides it ebbs and flows. The thing is when love is real whether its ebbing or flowing its always there it never goes away. And thats the only proof you can have that it is real and not just a crush or an infatuation or a passing fancy
It is easy to hate and it is difficult to love. This is how the whole scheme of things works. All good things are difficult to achieve and bad things are very easy to get.