Did I really endow my spouse with all my worldly goods?

[scarletcharlottethefirst]

I owned something worth lots of money (£10,000) before I married.
I worked, paid for it myself and had lots of fun.

I am married now and sold the ‘something’ for lots of money.
My husband who is rational and otherwise ok thinks the money is now half his
As in “ all my worldly goods I thee endow “

We are not arguing over this as it’s just a technical discussion. But it’s a genuine query

Is he, in law, entitled to any share of my ‘something’ or the proceeds.

We are in the UK

And it’s just a theoretical question. We are not getting divorced.

I don’t think he has any legal right to things bought by me with my money prior to marriage.

From a legal point of view I'm not sure because although the property was acquired before the marriage the money was acquired during it.

At this point while still married, you're correct. If you divorce, depending on circumstances, potentially everything including sometimes proceeds from assets you owned before the marriage is part of the pot.