Conjuredoc I find your statement to be a bit funny, "the 3 fold law was introduced recently into the occult.". My reasons are simple, the term occult is derived from the latin word "occultus" which means secret or hidden knowledge. Whereas occultism is the study of hidden or secret (your preference) knowledge. To say that something that has been around much much longer than Wicca for example and possibly was referred to as hidden knowledge, [though common sense for most of us] is a bit of an oxymoron. An unknown ideal introduced to the unknown makes about as much sense as teaching a podiatrist how to correct flat feet.
While agreeing with Brysing completely, what goes around does come around as it has done for centuries before any of us were even thought of, whether you chose to slap the "3fold" name to it or not it exists. Another term for it is balance. As a practitioner of 10yrs you would be well aware that a love spell affects someone's free will. If the terms of the relationship were mutual on both sides, then obviously a spell would not be needed. When affecting another person's free will, the balance of energy is offset. Sooner or later that balance has to be made again.
I am sorry to hear you are having such a rough time, but your question seems a bit off for a practitioner with of a supposed decade of experience under their belt. And I hate being one of the ones to remind you that Magick though when used correctly can be awesome, but does not solve every problem in your life. Some things can not be just "wished" away or into place.
And if you are being physically abused at home you need to contact your local authorities and report the abuse. Here's a website to help point you in the right direction as for trying to get help: http://www.boystown.org . If you truly are being mistreated at home, you don't need a spell, you need an intervention.