I really hate the term grooming. It makes perfectly positive behaviour seem bad. Forming a positive relationship with a child is GOOD. Engaging in a sexual relationship with a child is BAD. Most people who form positive relationships with children are NOT pedophiles. Can we please distinguish here?
In American English, the word "groomer" is entirely and exclusively used in the sexual abuse contest. That's not always the case for "groomed" but it is for "groomer," which is the nasty word used by the repeat offender on this thread.