A poem about cherishing things that your boyfriend doesn’t understand? Thanks

There was once a sincere relationship in front of me that I didn’t cherish. I regretted it when I lost it. The most painful thing in the world is this. If God can give me it again, it will happen again. If I have the opportunity, I will say three words to any girl: I love you. If I have to add a time limit to this love, I hope it will be ten thousand years!