Not a story about one DB. Not currently in a relationship. Instead, what seems to be a general trend in my life.

I've had more than five long-term (1yr ) relationships in my life, and every single one of those girls has "turned out" LL.

They all, to a one, seemed to start out average or HL, but then got "colder" around me over time, treating me less like a sexy adult and more like something between a "gay best friend" to go to movies and eat with and fall asleep on the couch with, and a petulant child (to the point of saying things like "you know, you're reminding me of [friend's child] right now" when I did anything in even the most intentionally joking-immature manner, that they would have previously laughed at).

By a year into the relationship, they were each-and-all completely asexual:

• no sex for months;
• no longer any desire to have conversations about sex—in fact, almost going backward in time and becoming blushing teenagers around the topic of sex;
• no kissing any more (this being very important, because foreplay with most of them required kissing them to get them in the mood before they would do anything else);
• no desire to be touched—in fact, an active aversion to physical contact in even a platonic sense, except within very defined boundaries like hand-holding when they initiate it (this part strongly reminds me of some people I've met with sensory processing disorders, oddly enough);
• an increasing random tendency toward retaliation to being touched with light acts of physical violence like "playfully" slapping my hand away;
• no interest in even effortless pleasure, e.g. just laying back and being eaten out;
• apparently (I find it hard to believe, but I lived/slept every night with two of them, and it seemed to be the case for those two) a complete cease of any/all masturbation.

So: I feel like I'm doing something wrong here, either in the way I'm picking ladies, or in something I'm doing during the relationship to lead them all down the same path. Which is it, and what should I do?