@Londonboyxxx i think it very much depends on WHY.
It can be autism - single minded, concentrating on things, getting a present fur ds, doesn’t think about context.
DH is dreadful in financial decisions because of that. He is unable to think about all the different possibilities and weigh them. Too many of them. Too overwhelming. Think executive function issues.
If he has any issues with working in partnership, putting himself in your shoes etc… he might struggle with a discussion around money because it involves taking into account a pov that’s different (see too black agd white thinking etc…l) And the further away you are from each other of your attitude towards money, the harder it will be. I mean I’ve seen dh getting panicky because I wasn’t going with his choice to choose a pizza ….. Deciding a lamp fitting for the kitchen is impossible because our tastes are so different etc…..
Equally, he might be avoidant and would prefer to simply to just do things his way wo involving you.
Or he might just be a prat.
I think it’s his behaviour in other domain that will tell you which one it is.
I mean dh can do any of the 4. If his bandwidth is small, his autism will show up more. Shopping would have been a trigger for dh. Too much people, the noise, lights. All of that quickly puts him on edge and he’ll go for the quickest solution wo thinking (so in your case, let’s get that toy and I can be out, thank god).
So all the executive function issues, inability to negotiate etc etc, all of that will be heightened too.