Member
It is absolutelt untznius to go on a date when you know already you wont be marrying that person.”
No, I do not think it is “not untzniusdig;” you use the word inappropriately, IMO. It is geneivas daas, however, the same way it is gn”d to go into a store in which you have 1000% absolutely no intention of spending a penny, and take up the time of the storeowner to show you his stock, just “to take a look,” unless you tell him that when you first go in.
You cannot be absolutely certain of anything in shidduchim, unless you already know the person being redt to you, and know why it is not shayach, especially if there is a chance the other party might BE interested.