Met him about 3 years ago via hobby. Met her for the first time before Xmas (probably November time). Friendly with him but not unusually so. Hang out within a group once every couple of months. See each other as part of hobby twice a week usually. Nothing untoward.
Now the strange part. I keep seeing her everywhere! I saw her walking the dog opposite my home (live overlooking a big park area - she would have to drive around 20 mins to get here) then again at a restaurant in a hotel that hobby group meet at quite often and most recently in the car park where I work. This is all within the last couple of weeks.
Friend has made comments in passing on nights out about her being quite possessive and insecure and mentioned recently that she thinks he's having an affair (to explain why he hasn't been as active with the hobby since xmas). Now I am worried she thinks I am OW and is scoping me out.
AIBU to feel unsettled by this?