How do you negatively respond to “Did you miss me?” without offending the person?

Problem/Goal: My guy friend keeps asking “Did you miss me?” I honestly don’t lol but not sure how to respond without offending him. Is it okay to just say “No”?

Context: This guy is a good friend and he recently expressed that he likes me more than as a friend. I outright told him the feeling is not mutual and that I’m not interested in him romantically. He said we’ll see and that he’s willing to wait.

Previous Attempts: He already asked this twice before and my first response was “Thanks”. The second time he asked, I told him I don’t miss people easily.

With this third attempt, I’m tempted to just say “No” pero parang ang rude? And baka ma.offend cia? Hahaha help.

I don’t like confrontations but I also don’t want to lead him on or give him the wrong idea. I kept reminding him na di ako interested in anything romantic pero parang he’s convinced na I’ll fall in love with him someday. Huhuhu. Di ko cia type and his personality is not what I want in a partner.