whiskey -
I wish you didn't have a reason to be here either. But I'm glad you found SI (((hug)))
It's a good thing that your husband confessed. However, cheaters often confess to a sanitized version of the truth, so that they can squash their guilt by convincing themselves that since they at least admitted to a little, that's sufficient; and they convince themselves that what you don't know won't hurt you and determine it would be in your best interests not to know the full story. For example, and I don't know if this is true or not, but it's possible he may regularly sleep with sex workers and the only reason he confessed this time is because he didn't actually wear a condom, so he's concerned he may have passed an STD to you. Again this is just a hypothetical. He may be trickle truthing you, meaning he's only admitting to a little bit of the truth at a time. E.g. He admits to sleeping with a sex worker once, and says that was the only time and with a condom, and then later admits there was no condom, and then later admits he gave her oral too, and then later admits it was more than once, and so on and so forth.
About this confession, what was the context? Was it spontaneous? Or did you say something that triggered the confession? And has he stated why he did it? Because if he doesn't understand his why, then he doesn't address whatever it was that led him to this betrayal, and that increases the likelihood that it'll happen again. The why may simply be, he did it because he could, and if that's the case, then what does he plan to do to prevent it from doing it again given his marriage vows or knowing he would hurt you wasn't enough to stop him. And, when you do something once, it becomes easier to do, and then the more you do it, the more easier it becomes to continually do it. What your husband may be doing is gauging your reaction, and if your immediate reaction wasn't break up, he may determine that means he can do it again because he won't suffer any consequences. Ask your husband, when he made the decision to cheat, what did he expect was going to happen once you found out? If he has no fear of you leaving him, he will likely cheat again.
You say he's remorseful, how do you know that? He confessed, but that's not automatically remorse. It's troublesome that he risked losing you & his marriage for "just" a transaction for sex. And is he saying he needed to cheat to realize you are the love of his life? Because that's absurd. What does he have to say about why you should believe it won't happen again? Does he actually believe you are supposed to trust his word?
You're not option-less, you could ask for a separation, you can decide cheating is a deal breaker and divorce, you may decide you want reconciliation, which would require both of you to do the work. I suggest you contact attorneys both where you live (you can probably find some in your country who speak English) and where you immigrated from. Do you have any family or friends who would allow you to come live with them or loan you money until you get back on your feet as an individual? It's a possibility that moving you to a country where you don't speak the language, and financially rely on him completely, and probably don't have any family or friends there, may have been purposeful. And now that he has you vulnerable, you may be seeing your true husband for the first time.