The other thing they leave out is this: you get more jaded every time you do it. I hate to admit it, but I've shacked up with six different partners in my 40 years (definitely not proud of it.) And every time, leaving is easier. Eventually you just feel too calloused to ever really bond with anyone. I doubt I'll ever marry (again)... it's just something I bungled early in life and that's it. You don't start fresh every time. Some things are fragile, and they can be ruined.
Thank you for the raw honesty in your post.
Yet don't discount the grace of God in being able to help you with the callousness. I'm counting on Him to help me there as well. May sound corny but it is, in fact, truth: He can make anything new.
I'm very sorry to hear that. But thanks for posting this. You may have saved someone a lot of heartache.
Sadly, this is human nature. The act of intercourse tends to bind the man and woman together. But as the number of partners increases, the natural bonding effect tends to weaken.
But there is a way out of this cycle: God's grace. Pray, pray and pray. He will show you the way out of this vicious circle.