OP - I'm so sorry that this has happened to you.
However, as you can see from the posts above, this is an issue that evokes very differing reactions from people. Whilst I can totally see the temptation to know other people's experiences, ultimately, I don't think it will help you. You are not those women, and their relationships, opinions, views, everything else..are not yours.
The only thing you can do is to get some space from your partner, and have a serious think about your views on all these issues. You won't be able to reach a view that you can genuinely stick to until you have had some space. Please do ask him to leave so you can do this, otherwise you run a real risk of falling back into an old "routine" whilst never resolving your feelings on what has happened. Even if you decide that you want to continue the relationship, you need time and space to consider this properly.
It sounds like you kicked him out in a panic, and then let him back in due to another panic. That's understandable, but will probably not help you in the long run. You don't need to "kick him out" if you aren't ready, but you can ask him to leave the house and give you some space to work through this on your own. Ask him not to contact you unless you contact him first.
Some questions that you might want to try and work out your opinions to (in order to steer your thinking of what to do next):
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If you had a daughter in this situation, what would you be advising her to do? If it's different to what you are doing, why is that? If she was giving you the same reasons you are, how would you respond? It can be helpful to try and imagine the scenario from an outsider's standpoint if you aren't ready to actually tell people in real life.
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What exactly hurts the most in this situation? The fact that he cheated on you? The fact he used prostitutes (buying women as a commodity)? For some people, it will be the infidelity that bothers them the most. For others, it will be the fact he willingly partook in an industry which is built on the oppression and suffering of women. It isn't important which side you fall on from a moral perspective, but it may help you to organise your thoughts if you can pinpoint what you find the most horrific in this situation.
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How did you find out? I am not asking for you to tell us, but as an issue for you to consider. There will be an obvious difference in whether you can rebuild trust depending on whether he willingly told you about what was happening, compared to whether you found out yourself through chance and confronted him.
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Deep down, in your heart of hearts, do you genuinely believe that you can trust him again? I think in these situations most people have a tiny nugget deep inside them which says either "yes" or "no" to this question. The "yes" is often drowned out by the obvious feelings of anger and betrayal, whilst the "no" is often drowned out by years of memories and love. But this will be one of the most important issues in going forward. If you think the answer is "no", then no matter how much you love him, there is no point. It would be a half live for you. If the answer is "yes" then your next move will depend on your answer to point 2. If the infidelity is the problem then you may be able to recover (depending very heavily on him and his behaviour). If the industry is what bothers you, then it may be less clear cut.
For what it's worth, I could not forgive a man who did this. Actually, I couldn't be with a man who had used prostitutes even if it was before we met. It would violate every principle that I hold.
But that said, my principles are not yours, and vice versa. It doesn't matter what I would do, it matters what YOU will decide to do.