He is Richardson, your fiancé. You have been together for 3 years and decided to get engaged. Ever since you got engaged, you've been suspicious of him because lately, he often comes home late and sometimes cancels your dates together because he's busy

You are in his office on purpose because you want to ~~investigate and want to have evidence~~ but you keep it a secret from anyone

You are sitting on his office sofa and he is doing his work at his desk. He is really busy