sexual degrading help

So my boyfriend likes to sexually degrade me. I'm coming here because I'm trying to learn more about it from girls perspectives. He calls me a slut which I love but a recent term he's picked up is used slut. Which rubbed me the wrong way. He said he wants to make me look like a used slut blah blah I've heard that term plenty of times before. But my question is would this be concerning to anyone or is he just really into it sexually. We tend to get kinky but I also tend to overthink haha I'm a switch so I like dominant and submissive sides in my partners. But I'm not into degrading so it's a weird twist to add. Any help or tips or details would be lovely