Hi and Welcome to YT!
Usually if a pup attaches to the DH.... calls for drastic measures.... gotta go get another one for you!
She's just doing that cause he's 'new'. You've been with her all day, he comes home and she wants to play with him. Maybe bc she's a she... Daddy's Little Girl!
(Just make that your 'breaktime') or take her for a walk when he comes in!