I found a homeowner who wants to sell their house to me directly. Is it wrong to ghost my real-estate agent?

Dear Big Move,
I’ve been working with a real-estate agent for about six months.
During that time we’ve seen about 20 homes, and put in two offers that didn’t work out for various reasons.
We’ve been approached by someone who is going to sell their home, but is not on the market yet. They want to sell to us directly as a home for sale by the owner. We are OK with that.
Read more on:
https://www.marketwatch.com/story/i-found-a-homeowner-who-wants-to-sell-their-house-to-me-directly-is-it-wrong-to-ghost-my-realtor-483812e0