husband trimmed pubic hair?

my husbands pubic hair used to were long, like 2-3inches in my guess. he never trims it and likes keeping it the way it is. i notice today that his pubic hair got shorter, like as if he trimmed it. just makes me wonder who made him want to trim it, why he trimmed it when he never even thought of it or even liked it. idk, i feel like hes doing it for someone new. wont u be concerned too?