I’m a SAHM and don’t make any money. So I’ll be using his money to buy him something lol

My boyfriend doesn’t like to spend money unless he absolutely needs to but will spoil me with whatever I ask for (which is not a lot). Ive asked him multiple times what he wants and he keeps saying nothing but I would feel bad if I didn’t get him anything at all. I know he loves the Dallas mavs and would love to go to a game but the tickets are pretty expensive and idk if he’ll get upset if I spend that much money on him. I also don’t have a car so I need to use his car when he comes home So he’ll def know I’m buying him something lol I’m thinking I’ll just get him stuff he needs like socks and underwear and maybe splurge on a nice cake?? Is that too little? I also have to add that I did not get him anything at all last year cause I was pregnant and we were saving money. We recently got our tax refund and it’s a generous amount but we have a 5 month old daughter so we need to be smart with money and save.

Please any suggestions would be awesome!!! Thank you