Is it cheating if I break up and then go on a date with his acquaintance afterwards?

Lets say I break up with my boyfriend at 8pm sharp and tell him ''It's not working out and I want to date others'', then at 8:15 pm or the following day, I start dating his acquaintance.

Even though I broke up, would you still feel you've been cheated on? Is that cheating to you?

Yes still
No, it's not
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+1 y
It's someone he knows a couple blocks where he works. They're not best friend but friendly. I guess they won't talk to each other anymore, lol.
Anyways, I wanted to do things the right way... by breaking up first and then date him.
Updates
+1 y
By technicality, I dated after breaking up and informing him I want to date others and it happened after the time of the break-up. I no longer had a verbal agreement to be exclusive to him by then.
Is it cheating if I break up and then go on a date with his acquaintance afterwards?
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