Thanks everyone for your advice!
I just could not find the right moment to tell him. Ok, there is never the right time, however, he is going through a major lawsuit and he is so nervous about it. I really can’t tell him at this moment when he needs me the most. I care about him and I sincerely want to be there when he wants to talk.
On the other hand, I am very firm on my belief. I really do not want relationship although he is so sweet to me and I like to see him for the time being. I am basically waiting for him to make mistakes, so I can naturally let him go. He has an ego so I would rather have him dislike me or think that he dumped me rather than the other way around. I just don’t want to hurt him.
What should I do? I am not manipulative but if I continue this, I would be a manipulative person regardless of my intent.