What does it mean if an escort leaves you on read?

Recently I saw a text message history between an escort and my boyfriend. apparently chatting happened when I was out of town, he was with his friends that night. When I asked about it, he said he does not remember what happened because they got so drunk.

So I texted the lady about it, she left me on read. Does this mean she does not wanna take responsibility or she is not replying because she knows him and something happened?

Help me please. Would she still be silent if something did not happen? I don't really know how this works. I am open to opinions.

He just swears on everything even on me that he did not cheat he would never cheat, especially with an "escort".

What does it mean if an escort leaves you on read?
Post Opinion