Then he goes to the office and while there, his secretary is dressed nice, smells nice, and is nice to him.
He asks her out for coffee...
Won’t work. Will sees his wife all the time. He sees her when she’s at her worst. Then he sees his secretary only when she’s at her best - she’s dressed for work, she’s wearing perfume and makeup, and of course she’s always polite to her boss. He’s attracted to the secretary and he starts something with her. He has unrealistically high expectations because he’s only seen her at her best, and once that idealized image is shattered...boom. He’ll become annoyed with her because she no longer has the image of a doll, and she’ll become annoyed with him in turn because she feels disrespected.
Those kinds of relationships are doomed from the start because they start at the high point and can only go downhill from there. There’s no room to grow.
But yes, I can see how Will would be tempted. I may be a woman but I’m conservative, which means I think like a man.