Yes, Hitler's prior actions made it many times harder to make peace. And the UK is not shameless in breaking treaties as Munich shows or Italy it WW1 or Oran. You could fill a bookcase with books on various treaties the UK broke/bent. The Nazi would also have to consider if the UK could be trusted to honor the terms of the treaty, or they were just buying time for the USA/UK to rearm.
The UK would make peace when facing starvation or impending military doom. When facing certain disaster a 10% chance of Hitler keeping the treaty can look favorable to mass starvation combined with a never ending war.
Also, the surrender term is a bit misleading. It is closer to a white peace, with harsh terms. The UK had lost no land excluding perhaps parts of Egypt and a few Islands in the Med. It is similar to the short peace the UK had with Napoleon.
Neither side would stick by their agreements. The Nazis were pathalogically incapable of keeping an agreement, and certainly not if they thought that Britain would re-arm during a "peace".
Even assuming Britain did sue for peace they would certainly use that time to rebuild and prepare to come back fighting. They would not under any circumstances tolerate the Nazis being in control of mainland Europe, such a thing would be to great a threat to ignore. It may have been the waining days of the Empire but the national pride would not allow them to sit back and do nothing.
Hitler would have to impose extremely harsh terms in order to try to mitigate the threat for the future and that would not sit well with the population. Much like the ill feeling that came in Germany after their defeat in WW1.
So you will have a situation where Britain will rearm and come back, Hitler will be aware of this and the only way to stop them would be the total surrender and occupation of the British Isles....
I cant imagine the leaders on both sides not being able to see the progression here and eventually they would all come to realise that any kind of negotiated peace or forced surrender would simply not last and would be more damaging for the Nazis in the long run.
Both sides wouldnt keep their word so why bother going through the motions when the end result is already pretty clear?
Hitler massively misread the mood of the British people from day one and without massive amounts of handwaving that would allow a successful invasion then there really is no possible way to get a surrender or capitulation. If the Nazis had the ability to completely cut off the British Isles from all external supplies (as has been called for here) then they certainly would have the resources to launch a successful invasion after a disasterous Dunkirk