dog won’t walk with me

my dog, 2.5 years old, seems to have decided she doesn’t want to walk with me. she will go with anyone else in my household and is fine if I join them too, but refuses to walk with me alone - I can’t even get her to leave the house!

I’m trying my hardest not to take this personally ha. she’s our family dog, however I feed her, pay for her, she sleeps in my bed at night, I trained her and I’ve taken her on 99% of her walks… until now

I don’t know what to do? I’ve tried offering to take her to her fave places (she recognises the place names), showing her that her fave treats are also joining us, leaving the house then coming back to see if she changes her mind…

also just incase anyone wonders, I don’t think I’m a bad owner or walking companion - when we used to walk together I was always engaged, let her sniff whenever, took her to a range of places each week, always brought yummy treats to reward good behaviour, let her play with other dogs when appropriate etc. so I don’t know why she won’t go with me anymore?

has anyone experienced this before? I miss walking with my dog :(