We had the same thing happen to us
dp married a real bitch-when they broke up,she refused to allow him to see the kids,the bile we’ve taken has to be seen to be believed,she contacted every single person I’m related to (snooped on my fb and googled my unusual surname on Google) and sent hateful messages and she’s caused so much trouble for us-no matter how tiny anything is,if she find out about it,we take months of her bile etc
anyway to cut a long story short,she threw the eldest out and she ended up living with us
apple didn’t fall far from that tree and she soon moved out-taking our house keys with her-back to her mother
i told dp to either get the keys back or change the locks-I ended up getting the keys back from her (took weeks of ranting phone calls from the pair of them over that) and didn’t think much of it-as far as I was concerned I’d got them back and that was the end of it
until a few weeks later,I had an unexpected day off work so was having a rare lie in
i heard keys in the lock and got up thinking it was my dp
nope-mrs ex wife had got our keys cut and kept the copy for herself-and had come round and let herself in for reasons only known to herself
i threw her out and we had new locks fitted within the day-of course we are in the wrong for doing this
i would be fuming-if your husband was single then he can do what he likes but it’s your home too and she had no right getting keys to let herself in to grab the phone-she will have had a snoop-her type can’t resist
teens do forget stuff-the lesson is the wait to get it back-I’ve had it with my lot