What do I do here?

around a year ago I suspect my partner of cheating. Many suspicious activities, whole behaviour changed and him has a person changed. I asked so many times if he cheated and he always denied it. Even after months where he knew how much this situation was killing me always absolutely he denied cheating. We ended up parting ways and I moved out of our flat early. A few months later we decide to rebuild. Well I decided, he was ready to do that from the get go. It’s now been a year and it’s been hard and not perfect but we’ve been able to rebuild. I chose to hang on to that hope he’s being honest. We had many long chats and he was vulnerable with me and yet still claimed he didn’t cheat even at times of me crying in his arms. Yesterday I found out he did infact cheat. Well to the point of receiving nude pictures whilst we were together, I don’t have 100% confirmation on if he’s slept with this person.

what do I do? We just spent the year building it all back up? How do I approach this? He doesn’t know I know so what do I just walk away? I’ve put so much time and effort in to this because I wanted it to work. Now I feel so lost and confused knowing that I was infact right all along. Even if he hasn’t slept with someone else he still cheated. Have I just essentially wasted a year? Even up until a few months ago he still claims innocent we don’t talk about it much now as I didn’t want to keep dragging it up.

im honestly so lost and confused

What do I do here?
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