Falling out of love

There’s this guy. We dated and I fell in love with him, but now we’ve broken up and I don’t want to love him anymore. Changing my thoughts to something like “I don’t love him”, or a version thereof, seems like arguing with reality and does not help.
I know that I can still love him and move on, and that’s fine, but I don’t want to be IN love with him anymore, because I want and need to move on.
How can I fall out of love with him?
Thanks Brooke xx