Are these workplace red flags, or is my unhappy married friend being dishonest?

My un happy married friend been getting attention from this guy at work he been giving her little treats like gum occasionally and checking up on her turns out he gave her his number she said she kept it in the backpack now she telling me he had it two months ago and prob got it from someone else than she said he keeps asking her to hang out somewhere she said no but one time she wanted to go hiking with now she saying no anyways is she confusing me or she not being honest?

Are these workplace red flags, or is my unhappy married friend being dishonest?
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