Disappointed and need venting

I was in a 17y relationship that I ended two years ago. Had to leave to a shelter with my kids. I stayed single for a year, then started seeing someone.

At first, it was just for sex and it was beyond this world. Then, as time passed I started to feel more comfortable, more attached. I was expecting something different because of our cultural differences and was pleasantly surprised.

But last weekend I caught him lying to me. It wasn’t a big deal, but I don’t like it. First, a few weeks ago now, his daughter (7yo) talked about an Olivia she missed and she liked her dog. She was missing her and she said that what she did not like was her always being there when she came to visit her dad. I let her express her stuff and did not ask question, neither did I speak about it to him.

Now he told me he was seeing this women before that she had a dog. So, I figured Olivia was his ex, but I did not think anything of it.

Last weekend, I went to his house and his mother was staying over with him. His daughter brought up Olivia again, that she enjoyed seeing her again. Something about the atmosphere changes a bit…

So later on, I figured I would ask who was Olivia. And well, his answer is weird. He said she was the ex girlfriend of his music band body. Then when on talking about his friends love life. I know I could be wrong but I know deep down he lied about her identity. I don’t mind really because we did not have the discussion about being a couple and about exclusivity. But why lie? It gives me the bad feeling that if he lies now, about such a trivial thing, what else could he be lying about?

Very disappointed. Thinking about moving on…