He didnt pay £25 to look at her photos etc. out of "curiosity" - whether she's truly from his home town or not.
You don't hear (how?) someone from your hometown is doing porn-y stuff and go on looking and pay to see it out of curiosity.
What's to be curious about? Any adult who's seen porn will have a very good idea if what it will probably be. It'll be the woman in lingerie, swimwear, nude, semi nude, doing whatever sexual stuff ....it's not going to be anything new or different or spectacular...it's not going to be anything a grown man won't have seen a million times before ...you don't need to look it up and pay to see it.
He looked up and paid to see that content because he wanted to see the content of that particular woman.
He's using a bullshit excuse.
I doubt she's even from his hometown, but even if she is - he didn't need to look her up and pay to see her stuff.
And he shuts you down and gets angry because he's been caught out and thinks he can use anger to shut you up.
I have never had an issue with any of my partners using porn (as long as it's not to excess) and I use it too sometimes. Only fans - looking at a particular person and having the potential to interact with them and buying their stuff ..... Paying money to an individual -etc. is way beyond using free, pre recorded porn; non interactive non personal porn for me.
It's gone from porn into "light" prostitute use.
I wouldn't be ok with it either.
I think he's lying.
About why he looked it up and paid to look it up (not curiosity), he's also probably lying about the hometown thing.
And on top of all that he sounds nasty/bullying; when he gets angry and pressures you to shut up.
I also bet, like most of these guys, if you were the one looking up some male fitness model or similar and paying to see their nude/semi nude physique images & videos and possibly wanking videos etc .... He'd be very very angry, calling you all the names of the day, possibly dumping you.
I don't think he'd believe you, or think it was ok if you said it was just "curiosity" and because the guy is from your hometown either.