I wouldn't say you're full blown masochistic and agree you sound submissive. Even if you were masochistic, as long as you're fine with it and in a healthy balanced relationship, that's fine. Obviously if you choose the wrong partner who is abusive that's not healthy.

There are couples where one is dominant and the other submissive - they engage in role playing where one inflicts controlled pain without endangering or causing real harm. This doesn't mean the dominant partner is abusive because the role playing in consensual and there's true love in the relationship. In true sado-masochistic pairing - they usually negotiate what they're willing to do and agree to a safe word or sign which would stop the activity. Bottom line if you're fine with this and having healthy relationships then its fine.