I have a rescue dog aged about 4. He's normally been very keen to go out, very energetic and loved walks. He would also go absolutely wild with excitement when anyone else came to pick him up for a walk. Now he's started to be a bit reluctant to go out with me. He seems to want to check the outdoors first by looking out of the windows, back and front. He's not nearly so keen on ball play as before, and has even started heading for home by himself from the recreation ground we often go to. But - he's still very excited if someone else comes to pick him up.
I do vary our walks quite a lot (different places, plenty of countryside walks aroung here), and he always gets plenty of time off lead. I am starting to feel as if he's happy to walk with someone else, just not with me. Any ideas?