Is my husband having an affair?

Found some messages on my husbands phone with one of his female employees and he has been messaging her whilst we are on holiday with our children. Nothing explicit just photos of dog and short conversations about everyday things. Everyday... for 5 days in a row.

There are other messages dating back to 1 year, mostly about work things but there is some subtle flirting as welk.

Does he fancy this woman? I know she's married but she's very pretty.

Im worried

Is my husband having an affair?
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