An affair to me

Your narcissism is preventing you from seeing that your perception does not decide reality for the rest of the world.

I'm still leaning towards you being a troll, but you've been very active and seem hellbent on defending yourself so I'll humor you:

https://www.verywellmind.com/emotional-affairs-and-infidelity-2303091

https://en.wikipedia.org/wiki/Emotional_affair

You've conveniently not revealed the depth of your conversations, nor the frequency and duration. You've also not revealed how the relationship began. Did you message first, or him? Why on earth would a celebrity message a random person on instagram for a secret friendship? Be very curious to know the nature of your instagram content that would compel him to message you. If you messaged him first, what brilliance could have coaxed him to reply? Or was it indeed your content, aka he's attracted to you?

As it stands, most people in this thread are assuming you're a very above average looking girl. Either way, ask yourself this question:

Why would a 44 year old married man -celebrity or no- want to start a secret online friendship with a 29 year old stranger?

We all know the answer. You're either in denial, or don't care.