Why won’t my husband say I love you to me when our female co worker is around?

I work with my husband of 16 years but lately he’s been acting kind of strange. He’s hanging around younger co workers at work. He’s never had an issue telling me I love you on the phone before but lately around this one female co worker, when I tell him I love him, if she’s anywhere around, he won’t say anything or just say goodbye without saying I love you. Is he worried what she will think?

Why won’t my husband say I love you to me when our female co worker is around?
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