UPDATE: sister got anon message saying boyfriend was cheating

Original post here:
https://www.reddit.com/r/relationshi...ymous_message/
A few days ago, my (29F) sister (27F) got an anonymous message saying my boyfriend (35M) of 9 months was cheating on me with prostitutes he met through dating apps.
I confronted him earlier today when he got back from his trip. I didn't know what to say so I just told him there was something we needed to talk about and showed him the screen capture my sister had sent me. He got really, really, quiet and just sat there for a minute. Then he pulled out his phone and handed it to me and told me I should look through it. He said I could see for myself that there were not dating apps on the phone, and I was welcome to read all his text messages and emails. He seemed really sincere, so I decided not to look and just told him that I trusted him but wanted to let him know that this had happened, and then I asked if he had any idea who might do something like this, and he said he didn't. I told him as far as I was concerned, the matter was done.
We hung out for a little while, and he was pretty quiet, which I didn't think was that strange under the circumstances. Then he left because he had to run some errands. A couple of hours later, he called me and said he had something he had to tell me. He told me that about ten years ago he was really depressed and feeling bad about himself after a breakup and some bad dating experiences, and he visited prostitutes ~15 times over about a 4 year period. The first time was during a trip abroad right after college in a country where it was legal, but the rest of the times was in the US. He says that he always wore condoms and has been tested since then and the last time he visited a prostitute was about 8 years ago. He swears he has never cheated on me with a prostitute or with anyone else.
I asked him why he didn't tell me this in person, and he said that he was shocked and didn't know what to say and that he barely thinks about it anymore. He said he was calling me over the phone now because he didn't know how I would react and thought maybe I wouldn't want to see him in person but he wanted to be honest. I told him this was a lot to process and I needed to hang up and think about it and talk to him later.
Edit: My solution is that I've decided to tell him I need a least 48 hours to think about it in order to decide how I feel.
tl;dr: I confronted my boyfriend about anonymous message saying he's been visiting prostitutes. He denied cheating on me with prostitutes but admitted he has gone to prostitutes in the past.


Source.