I think you should keep the beautiful boots! Especially since the boots are flattering and make you feel happy. Although you won't be able to wear them everyday as an active mom, I assume you will have some occasions this winter where you can wear them (Christmas or New Year party, date night with him, even a teacher/mom conference or club meeting etc.)... Occasions where you won't have the children with you, or where you will only need to wear them for a few hours. Be kind to yourself, most moms give and give to others, but aren't as generous with themselves. You deserve some nice things so go for it! If on the other hand, you really think you will have NO occasion to wear these, and they will sit in the closet making you feel terrible, then returning them is probably wise. But then buy something else that is just as fun and cute.