My head hurts

I have been replaying the scenario over and over again regarding the non-pregnancy.

I'm sorry but there was no way I could be expected to deduce it was a joke from the two-way conversation I had.

As to the spiteful part, in the next bar 2-3 hours later, well I still have no recall about that. So unless the person concerned is willing to enlighten me so I can act on it, I'll just have to plead excess alcohol (again) and leave it at that for the time being.