Sorry, Azoi iz – I was not clear:
What I meant to say is the intro gets done by a shadchan (a co-worker, a neigbor or a pro) the next day, party A and party B both get back to the shadchan with thier version of how things went. If both are a go for a 2nd date, at that point, if either one feels things are not heading in the right direction, they should be mature enough to say so directly to the other person. Often, it may just be a case of a misunderstood comment, and at this age and stage of the dating process, both should be capable of relaying what’s on thier mind without the need of a negotiator.
Its a skill they’ll both need in life, and if they don’t have it at 25, when will they?