She once had a crush on her childhood sweetheart, and this crush lasted for ten years.
When he was with someone else, she would restrain all her emotions and just be his good friend.
When he finally wanted to be with her, she discovered that it turned out that he was not in love with her.
Misunderstandings again and again, a ten-year relationship ended in vain, and there was another person waiting by her side.
"I have liked you for ten years. But now, there is someone else in my heart."