What is i took her for granted?

"I took her for granted" is a phrase that generally means not appreciating or valuing someone or something until it is gone or lost. It is often used in romantic relationships when one person realizes they did not value their partner enough, causing them to feel regretful and wishing they had treated them better. The phrase can also be used in other contexts where someone fails to appreciate the value of someone or something until it is too late.