I know this is stupid,but can someone please explain this to me?

For the past couple of days my ex (Forrest) has been looking at me a lot and actually talking to me again,then today i see him in food and nutrition's and he's wearing the Georgia Bulldogs Necklace i got him when me and him were on the way to White Lake, Florida for a couple of days. Why would he be wearing it,I mean he never wore it when we dated but now all of a sudden out of the blue,he's wearing it. Explanation?