No One Knows When I Come

Riddle: Some need me, some don't. Some want me, some don't. Some chase me, some don't. Some deserve me, some don't. Yet no one knows when I come. What am I?

Answer: Love.

Source: https://www.riddles.com/9997

Some need me, some don't. Some want me, some don't. Some chase me, some don't. Some deserve me, some don't. Yet no one knows when I come. What am I? — No one knows when I come by UnknownHeart v1.

Riddle: Some need me, some don't. Some want me, some don't. Some chase me, some don't. Some deserve me, some don't. Yet no one knows when I come. What am I? Answer: Love. — by UnknownHeart v2.