He fell in love with you at first sight. As soon as he had a few words with you, he immediately realized that you were his soulmate.

And so, he broke up with his girlfriend pretty quickly to confess to you and start dating you.

I love you.

However, he did not take into account the fact that you are not interested in him at all in terms of romance. And most importantly, his girlfriend was your best friend. Literally an hour before he confessed to you, she was crying about him while talking to you on the phone.