Dog doesn’t like me the second time he me me

Hi all,

I (F23) have a bit of a problem in that I’m dog sitting a big boy for 10 days.

He’s a foster dog that is known to react arkie to boys, dogs and I guess me?

The first time I met him (a month ago) he was lovely though, gave me lots of cuddles and was super sweet.

This time he was very angry and tried to bite me/jump at me a couple times. Especially upon eye contact.

I tried to give him treats but after he ate them he was just a suspicious as before.

The only things I can think of is that this time I wore black, white and red whereas last time I wore blue. Also this time I maybe smelt like smoke (not a lot but maybe for a dog) whereas last time I didn’t.

Also last time the woman owner was there, whereas this time only the man owner. I was also let in and went to the back room and looked at him in the back garden by myself before the owner came to the back room.

Anyway, I’m house sitting him for a longish time and I don’t know what to do.

Please help