Where one spouse tells the beis din that he/she wants to reconcile.
Hmm. That occurs in a rather huge percentage of cases, and this is an entirely different discussion. I have observed this happening many, many times. On occasion, there was rationale to this. There had been minimal to no effort at getting help. The basis for seeking to end the marriage was flimsy, or based on external forces rather than discord between them. Other times, the “defendant” or “nitvah” was fearful of the consequences of life after divorce.
The response of “But I want shalom bayis” is a well recognized tactic of delay. Many of these cases have rather good reason to end a marriage (not talking about halachic reasons), and remaining in the marriage by not granting or being willing to receive a get only throws wrenches into the mechanism. Dayanim see this regularly. Whoever does this is certainly being “not nice”. And I dare to suggest that only a limited percentage of these cases have a legitimate basis to stop the get process and redirect to professional help.