Is this cheating?

So I’ve been with my boyfriend for 10 months... he and his ex were super close, but when we got together he “knew how much it made me feel uncomfortable” so he told me he stopped talking to her except small conversations about family. Well I saw this thing on TikTok that you can bring up old deleted conversations and I did... he had been seeing her at her house, and even asking her when she gets off of work. He had got her shoes that he told her he would get when they were dating also:( -he said he returned them-

He had been lying to me for months and sneaking behind my back. He claims they didn’t do anything and that he only went for her family. I tried to get into his “my eyes only” but he said he felt uncomfortable because he had pornstars in there. I asked if he still had some of her pics in there and he said yes. He never let me see any of that and he deleted it. He then said that he would block her and that’s the hardest thing to do. But he never did...?

What do I do???