en_tn/1sa/18/20.md

Michal ... loved David

Here "loved" means she had romantic feelings for David.

They told Saul

Here the word "they" refers to people who found out about Michal's feelings, not to David and Michal.

the hand of the Philistines

See how you translated this in 1 Samuel 18:17.

You will be my son-in-law

in-law** - AT: "You will be the husband of my daughter"