I have been told before in confession that I needed to be excluded from communion for a certain period of time for a sin I did. I doubt I could have gone up to receive communion the next day just because I said the pre-communion prayers.
If this was post absolution, then confession and absolution would be rendered useless.
Being absolved from sin means exactly that.
If there was no absolution, then I could see that from an Orthodox perspective.
What is the point of absolution if you will sin again? Though we do recognize that we will indeed probably fall again, the point is that we try not to. Intentionally going against the direction of your priest is not trying.
But if he granted absolution, then the sin is absolved.
If the priest did not absolve this, then I understand. Once absolved, it's made "whiter than snow".
The priest then absolves and then says 'skip the Eucharist'?
Then the priest did not believe in absolution. (of course, only he knows if the absolution prayers were said)