Sometimes but in old legends Mermaids were known for singing Sea chantys and luring sailors to their deaths with their compelling voices.
she made them fall in love
Yes he does.
He's already in love with her. He was designed to be in love with her, and to care a lot for her.
Its a natural thing.
Dolphins.
Yes
NARUTO LOVES SAKURA
For a start, merfolk don't even exist. But if you want a logical answer, they probably lay eggs and then fertilise them. In some mythological stories, mermaids and mermen can turn into humans when they get on land (meaning they get legs and other things that are below the waist). Some say mermen and mermaids mate in their human forms on land (just as humans do), then return to the sea. Mermaids can then give birth on land, and return to the sea with their offspring.
All humans can fall in love and almost all of them do at least once in their life.
It made humans and gods fall in love.
Yes, they definitely can!
Mermaids aren't real, I'm afraid.