sex becoming boring

This is not a question, more like advice. I feel like sex is becoming boring, maybe because we aren't doing fun exciting things, we just have basic intercourse. The other day we were having sex and at first it felt good then afterwards my moaning became fake like I noticed I wasn't enjoying it anymore unless he was going faster. I do think maybe it's cause I masturbate a lot and use toys when I do, so maybe I'm use to the vibration of toys, I'm afraid something is wrong with me. Advice?