disagreement with partner about parenting issues

[mulderlovesscully]

So my little boy (almost 4) has been pretty sick and not eating much for the last week. Today he was starting to show an interest in food again and ate half a fish finger and some toast for lunch.
He then wanted a biscuit. My partner asked him to eat one more bite of toast and promised him a biscuit if he did. I could see that LO really didn't want to eat any more toast, but he forced himself to do it and was promptly sick.
I immediately felt guilty and ashamed for pressuring him to eat. My partner at first didn't believe that LO had really been sick, but when I had convinced him that LO had indeed vomited, he said "Oh in that case I don't think he can have a biscuit now since he has just been sick".
I was quite taken aback since I in my opinion we had made a promise to LO, and it was our fault he was sick for making him eat something he didn't want to eat.
Am I being unreasonable, or is he?? I think if you promise a child something you should keep this promise - he did what we asked him to do even though his body told him not to. The fact he was sick was our fault and he should not be punished for it....
Opinions please?

If your child is vomiting giving him a biscuit is not a good idea.
Dry toast is a better idea.
A child that throws up after one bite of toast, is also going to throw up if he eats a biscuit.

So if you do what you "promised" your child will be sick. Not giving your child something that will make him ill is hardly punishing him!

Tell your child he can have a biscuit when he's better. Then distract him with CBeebies.

Give him the biscuit. 90% he'll puke it back up. And then you can stop with the "we caused "this nonsense. He puked because he's poorly. A bite of toast or a biscuit make absolutely no difference to the puking .