Husband looking at fetish content

So I asked my husband last night if I could show him something funny on instagram that I’d forgotten to send him the other day. My phone was charging upstairs so wanted to use his. He instantly seemed a bit off and said yeah but was hiding the screen and then showed me when it was up on the search screen I asked why he was hiding his phone and he realised he wasn’t as subtle as he’d thought. He told me it’s because ‘the algorithm’ keeps showing him boobs etc. I said ‘well you know why the algorithm shows you stuff…?’ And he just sort of awkwardly said ‘yeah because I click on it, I know I shouldn’t…’ Ended up finding out he’s got a fetish for latex stuff. That part wasn’t a massive shock as he’s mentioned me wearing it a few times and I’ve said it’s not my thing, and that’s been that. I’m really upset by the hiding and sneaking and the fact that it’s insta models. It’s like one step down from onlyfans (which he insists he doesn’t use). I don’t know if I’m being overly sensitive but we’ve been together nearly 11 years. I’ve grown and birthed and fed his children and he knows my self esteem is on the floor because of changes post children, and we barely have sex because of it. But surely he could have been working on our relationship and helping to build me back up rather than focussing his attention on plastic strangers online. He keeps saying sorry but I don’t even want to look at him. I just feel so completely humiliated and inadequate. Needed somewhere to vent ☹️