Am I extra or justified?

I've been with my boyfriend 3 years and we've had issues with his ex. They were together like 2 months in 2017. But, they sell and buy drugs from each other and he used to keep it from me. Like when he'd see her he wouldn't tell me. Up until early this year I would catching him lying about seeing her. He told me he never cheated and I've verified this. But I'm still uneasy. I think she still wants him and the constant lies really messed me up. I don't think he's lied in the last 8 months but I brought up to him today I'm still insecure and he called me extra.
Am I extra or justified?
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