My bf refuses to buy me female products (pads) and now I’m upset..

I’ll make it short and sweet. Me F(25) and my BF(28) been dating for over 3 years. Yesterday we had a conversation through text about him going to the supermarket to get pasta because we were having people over and I was going to cook. Mind you, he gets out of work before me and the supermarket is 3min away from home.

Everything was fine until I got my period right after I was about to leave my job and go home.. so I texted him to please grab some pads for me and his answer was “I’m not doing that” then I said “ I’m going home, they are on the personal hygiene aisle, I need them” His answer was “So go get them?” And I replied: aren’t you going to the store?” He said: “Yeah…” so I Replied: I’m telling you to please get it for me” and his answer was “ I said I’m not doing that but you keep asking” and I ended the conversation by saying ok thanks

Then he said that we shouldn’t have people over tonight… which made me more upset.

I ended up getting them myself, while having pain and a bunch of toilet paper wrapped around my panties to not make a mess…

I always say: it’s not what you say it’s HOW you say it. IF he feels uncomfortable he could’ve said “I’m sorry but that makes me uncomfortable so I won’t be able to do so” and I could see it with a different perspective… However, he is 28 and I think it’s a very immature thing to be embarrassed about…

And before you asked, this was my second time asking him (the first time he got it for me no problem, but we were living at his mom house which she used to do everything for him so at this point I think she was the one who got it)

Please help with an advice

EDIT*** Huge thank you to all for the feedback. I would like to add an anecdote: 2 years and a half he had a horrible accident while skiing, fractured his right leg and dislocated his left shoulder so he couldn’t move at all or shower and even pee or poop. Guess who helped him with all that? ME.

I would expect him to do the same for me but not being able to do this little thing for me might honestly be a dealbreaker.. Call me dramatic idc.