She doesn’t know she’s hoping, her op is very telling, she says she’s married and not going to leave her marriage, which shows closely she’s infatuated with this man, if she wasn’t she’d simply have said I’m not remotely interested in him, but she didn’t, her go to was I’m not ending my marriage,
id put money on this is someone who was once considered attractive, who thrived on male attention, doesn’t get it any more, and has went after this guy as she wants the attention and is excited by it. She’s pushing it hard, and chasing him.
op, I’d consider his wife knows as he told her, he showed her the messages, as he was worried about your behaviour and doesn’t want to make it awkward at work, so she said blame me then, I will have a word.
i suspect he wants you to back off and i think you’re going to find as you are doubling down on it, he will start to do so, as you’re not taking the hint,
you actually think you’re competing with his wife, how you’re better, you buy him gifts, listen to him, make him laugh and how it makes you special and better than her, in fact it just makes you needy and embarrassing.