This is a touchy subject I'm bipolar and I'm female.
But I don't have the symptoms any more because I am treated.
It seems like you are attracting Meth addicts more than bipolar people. That sucks!
Here's how my brain worked when my symptoms were untreated:
1) Would date anyone who looked at me with affection. I had no reservations. It was illogical.
2) Relationship would only last four months at max
3) Would jump into relationships one after the other constantly
Now what might be happening here is that you are getting involved with women so easily and quickly without deeply knowing their morals and values first.
Here's a strategy that might help you. Imagine yourself as a man with three luxury cars, two motorbikes, an acreage with a cow and four horses, you have a business, you run five miles a day, you race boats and dirt bikes. With a busy schedule like that do you have a lot of time for a woman? The answer to that is NO. But you still have time for a woman and just one woman. You set guidelines that you will be loyal to each other and learn what her values are so that you can become more involved. This gives you time to grow a successful prosperous life. Plus you get the girl of your dreams.
Have fun with that.