DP's social media - right to be suspicious?

[Deciderisa]

My DP has form with past questionable social media use.
When we were first together he had all the usual social media accounts with literally hundreds of women added, usually scantily dressed etc. I explained that I didn't think this appropriate when in a loving committed relationship and he deleted them.
Then it started again and I had to reiterate how I felt.
Then TikTok started and I discovered he had added or followed or whatever hundreds of women/girls. Apparently this was 'normal for a man' and it's just my insecurities.
Yes I am rather insecure but I think this is warranted and now I'm wary of his SM use.
Recently he hasn't been making much effort and I feel ignored a lot of the time, whereas I'm loving and demonstrative he's quite cool, but in his defence he's sweet and will always address my concerns. He's never cheated on me and says he never would, but him looking at half dressed women pisses me off.
More recently I've challenged him on being online with the green button showing on Messenger, e.g. being active on there but ignoring my messages..(pathetic I know, I feel ridiculous writing this). He says it's not accurate and I'm doing his head in with it and has now disabled this feature so I can't see when he's active at all and secondly has made his 'friends' list on FB private.
I said this had upset me and he said 'good, at least you won't do my head in seeing if I'm active or not when it's not even accurate'.
I pointed out that sometimes it's quite useful having the green button showing active as then I know when it's good to message him, as we are both busy at work all day and if I happen to check and see he's active then I'll message, otherwise I won't bother.
AIBU in challenging him on hiding this?

I think for a lot of men, social media has just taken the place of lads' mags. They used to look at FHM and Loaded for pictures of women pouting in bras, and now they look at Instagram instead

I think you’re right. It’s not great but it’s hardly a heinous crime. Social media has a lot to answer for.

I doubt the OP would be monitoring the green dot so much if he’d shown he can be trusted. OP, your instincts are telling you he’s not to be trusted because he isn’t! He’s a creep. Don’t ignore your gut!

In real life I don't know any men that behave as this one does on social media and the women I know would be extremely embarrassed if they did. It certainly isn't normal in my world.

Following scantily dressed women is skeevy and paints him as anything but sweet, however, you sound exhausting with your green light nonsense.
You don't trust him so why even bother being with him?