Some examples of word usage: lovesick
1. She couldn't focus on her work because she was lovesick for her long-distance boyfriend.
2. He spent all night writing lovesick poetry about the girl who broke his heart.
3. The lovesick puppy whined and pined for his owner when she was away.
4. She felt lovesick after watching a romantic movie that reminded her of her ex-boyfriend.
5. He was lovesick for the girl next door, but was too shy to tell her how he felt.
6. The lovesick teenager listened to sad love songs and cried over his unrequited crush.
7. She tried to hide her lovesick feelings for her best friend, afraid of ruining their friendship.
8. He couldn't eat or sleep because he was so lovesick over his recent breakup.
9. The lovesick couple spent every moment together, unable to bear being apart.
10. She felt lovesick every time she saw her crush talking to someone else.