Cheating husband

My husband and I separated in September 2023 after I found sex texts and intimate pictures on his phone to another woman. He has a history of this behaviour, and this was the last straw. Fast forward to early 2024 and we reconciled and he moved back in. He romised me he was going to get counselling, was full of remorse and apologies. Told me he had not slept with this women and I chose to believe him. Two weeks ago I find more messages to the same woman one that specifically alluded to them sleeping together. He has now finally admitted to it although he told me this was all just his fantasy. I'm absolutely devastated and don't know what to do. He has now had one counselling session and seems to think this is enough to fix his problem. I've had some health problems and my sex drive hit the floor and this was his excuse for seeking out other women. Over the last year I've made huge attempts at trying to sort out my issues and opened up to him about solving these issues and we were intimate but he was still texting this women and trying to hook up with her again. I just don't know how to move forward and keep going over all the sordid details in my head again and again