The girl was surprised that the boy
The one who wanted something, just took it and fell away, learning that she has other interesting activities, most likely taking it as an excuse. Also, apparently, the lover to think of the unnecessary details of conversation.

I'm not that guy, but in principle I don't know what else can mean consistent "no, on Monday I'm busy. Tuesday is busy. Wednesday is busy. And on Thursday. And on Friday, except "and on all subsequent days, about which you have patience to ask".

If we are talking about real employment - the first, maximum second refusal should be accompanied either by a counter-offering (maybe you go with me, and then we go for a walk), or by the option "I have this whole week terribly busy, let's go next Tuesday."
And the situation described is absolutely unambiguous "I will sew and I will sew", and it is impossible to perceive it in any other way. No, if the boy is specifically stuck and ready for anything - he can catch the girl later on one of her hats. And standing up and having "a 26th? And the 27th? ..." - the option is clearly losing.