i can't find anything online really about csa that continues past age 18
That’s just because it’s still sexual abuse, but you’re no longer a child. The terms switch up, is all.
It’s really common for sexual predators to abuse the same person off and on for years. The off times? Have various causes. A common one is when pedophiles are attracted to some ages, but not all ages. Most pedophiles have a fairly narrow range of a certain developmental stage (less age by years, more infant, toddler, prepubescent, adolescent, etc.), but many have a few fave ages, and some either don’t have a favorite age and any kid of any age is in their target group, or it’s less about them being a child and more about the total power & control one has
over a child. <<< That last one makes up one of the groups of rapists who are especially attracted to raping their own families IF they feel they have total control over the situation, cults, rape camps, armed rape squads, prisons, illegal immigrants in their employ, etc. For that particular group of scum it’s more about exploiting vulnerability / total power & domination being sexually attractive, rather than an age (or often sex/gender, most pedophiles don’t switch hit, these often do) being sexually attractive.
Which gives you a few different avenues to find commonality... sexually abusive cults, in particular, just because they’re better studied thannfamily groups (in no small part because they’re easier to find, and more inclined to cooperate with people they view as having authority over them :( Similar to how it’s easy to study military personal, because they’re easy to find, and used to obeying / answering questions put to them. In addition to the
hoards of researchers descending on forcibly disbanded cults, there’s also all the aid workers working with individuals who have left a cult, and both primary and secondary research, there). Your abuser is hardly unique, it just sounds like he either didn’t find “his people”, or doesn’t like to share &/or not be top dog. Which is also common, the ‘can dish it out but not take it’ cowards at their core &/or narcissistically bent is common in a lot of forms of abuse and abusers.
People not being willing to cooperate with scientists & journalists, by offering up their histories for study or public consumption? Doesn’t mean they don’t exist. It just means they’re far more elusive.