Is it cheating?

I’ve been with my fiance for three years now, and we plan on getting married in November.

From the start of our relationship he stated he was super monogamous, and he viewed pornography as cheating, that you didn’t need anything like that. That if you loved your spouse, none of that was necessary.

I recently found out he has a lot of half naked girls on one of his Instagram pages. He mirrored his phone to show my parents wedding venues..and it all showed up..

He said they were old friends and he can’t control what they post.

No big deal I get it. But I found out some of these girls are close with my old swinging group. And he ONLY follows them with that one profile, not his other pages.

And he’s liking the pictures as well, and ONLY the half naked photos..or boudoir shots. Not the dog photos, wildlife, or any normal ones..

Would you consider this cheating?