Only on MN could a dh be in the wrong for sharing his bonus with his wife so she can treat herself!
Sometimes I read things on here & I seriously wonder how some people manage to maintain relationships!
Many years ago I was a SAHM for about 6 years. We relied on dhs income to get by. I had had a very successful career before dc & had a fabulous wardrobe as clothes were always a love & interest of mine . Naturally when I was no longer earning I no longer bought clothes as often..also my work wardrobe wasn't always suitable for life with a young dc. I made the most of it & added more practical things from cheaper shops to make it more usable day to day.
My husband hated the fact that I was not buying stuff I'd like & when he got a bonus from work he surprised me by taking me away to Belfast for a weekend (arranging thing so my parents minded dc). We stayed in an amazing hotel & tye next say he said he had a surprise for me. He walked me to the door of Jigsaw, which had been one of my favourite places to shop pre-dc & he said he'd transferred £1000 to my account & I was to buy whatever I wanted.
This is 16 years ago & I still remember how I felt. It was the sweetest thing ever.
I can still remember what I bought - 2 pairs of cords, 2 long sleeved tops, a cashmere jumper, a check flannel shirt, a coat & scarf & another shirt, velvet jeans
It was amazing. I felt so good getting dressed every day. The clothes were beautiful and practice & I felt like 'me' again for the first time since giving birth
We're together 23 years now & my dh has supported me every day in every way since we met. I went back to work & now I'm the higher earner. He still loves to buy me clothes / perfume / jewellery.
He did not 'expect' me to change or up my game to be more sophisticated or sexy. He wanted me to feel good every day getting dressed & he 100% appreciated the sacrifice I made by staying at home for those years.
OP, depending on what clothes you already have I would focus on buying things that will make you feel amazing whenever you put it on. Maybe that's a great coat & boots & an outfit for going out. Or a selection of everyday outfits from a shop that's a step up from your usual places.
Your dh has done a lovely thing & I hope you enjoy spoiling yourself