I'm looking for a short story of a person whose conversations all ran alphabetically.
I think it's a rather known short story (I read it initially in German, but don't know, in which language it was originally written).
The first part is of the man reminiscing about a visit at a bar, where he talked to a girl. There he explains his situation, that all his conversations start from A and run letter by letter to Z, at which point they finish.
He vexes that, if only he (not sure if it was exactly like that) would have held each letter a little longer, he'd have had a chance with the girl.
At some point in the story, he visits a specialist in the hopes of curing his curse. This specialist then tells him that breaking the curse is a difficult endeavor, and eventually he achieves breaking it, leaving the main character relieved, but only as neither of the two notices that the curse had been replaced by another one.
What's the name of the short story?