<human>: So I recently found out through a friend of my girlfriends that she used to be an escort about two years ago. We have been together for just under a year and things have been great. 

About a week ago the GF and I were discussing sex workers and the conversation got pretty heated. She asked me if I could ever be with an escort after a line of similar questioning and I said yes. I am open minded and honest with her as she is with me; there was something different in the intensity of he question, as if it mattered deeply to her. Anyways after I said yes, I asked her if she had ever considered it and she said that she had thought about it as you could potentially make a lot of money. I asked if she had ever done anything like that and she said no. She lingered in her response in a manner that I could tell was not entirely honest; I knew she was lying to me, but knowing this might be something difficult to talk about I let it go.

Later that week I got confirmation from her friend that she had dabbled in sex work, to what extent I don't know and frankly I don't want to or need to. That is her business so long as I can know she was safe. I think that relationships need a certain amount of privacy and I want to respect hers but a murky sexual history could be an issue, especially on she is not willing to talk about.

Having this secret now between us is eating me up inside. Any ideas on how to bring it up and talk it out like reasonable adults. I want to get a dialogue going because otherwise everything is great. Her past has made her into who she is and I love who she is. I just don't have to have secrets and lies between us moving forward and want to open a dialogue to dispel that.

Thanks in advance reddit. I could use a hand. Also please forgive any spelling or formatting, I am on mobile and will adjust the post if it is unclear or difficult to read.

Can you summarize the given text in a few sentences?
<bot>: Found out through a friend that my GF used to do escort work. Don't know how to bring it up as she denied it earlier.