Not respecting myself...

Okay so I was just wondering, I just met this dude some weeks ago ( not a month yet) and had sex with him. My mom be wondering where i be going late nights, and she's trying to say I'm disrespecting myself and not being lady like. The reason why we meet late nights is because I work through the day.

I just had sex with him that one night. When we meet we basically just vibe and talk. I haven't told my mom about the sex part but with her saying I'm not acting ladylike becaue of me going out late nights, is making me feel bad. He's actually the second person I've had sex with my ENTIRE life. I feel like I respect myself, but I just slipped up that one night... he's really nice and caring, and I feel like he's not using me for sex or anything. But I just can't stand the fact my own mother is saying I'm not acting lady like, just because we meet late. I wouldn't dare mention the fact I had sex with him to her...