Love.

Love is hard. 
Love is messy. 
Love can leave you in tears wondering what went wrong. 
But when it's right love will leave you breathless. 
It's still hard and messy and sometimes you wonder if it's worth it. 
Although if they truly have your heart you will never stop fighting for them, you will never give up, you will never want anyting but for them to give you their heart and you will do everything in your power to keep it safe from harm.