Dog won't kiss, why is this?

File: Molly and Kitty 2.jpg (3MB, 2656x1494px) Image search: [Google]

3MB, 2656x1494px

Hey /an/, /k/ommando here hoping for some dog advice.

I have a 14 year old border collie named Molly, I've had her ever since she was a pup. Great dog, very smart, full of energy etc.

Past year or two ago she's slowed down significantly. I figure that's just due to age, but she still gets 2 walks a day. She's also lost most of her hearing, so she can only hear a loud whistle if you're in the same room as her. Her hips are also not very good, so we no longer let her swim in cold water as it tends to freeze them up, but thankfully she can still get up the stairs, though slowly. In regards to nutrition, she gets dog food, a sweet potato and vitamins every day, and we always have plenty of water for her to drink. She weighs 50 lbs.

Here's my question: Why has she stopped being "kissy"?

She used to always kiss people, and just putting your hand or face in front of hers, would result in a kiss. However, the past month or so she has stopped. Anybody have an idea as to why that is?

>pic related, its my little baby