Suzanne, I had a similar experience. I had been divorced for two and a half years, but separated for nearly five and dating on and off since that time. Like you, I had a few dead-end relationships with Mr. Wrong's. Also met a string of losers through online dating. I took a full year off from dating and devoted myself to my work, my friends, and learning to be comfortable with my own company. Of course, all of that had been taking place ever since the separation, but that year I made a conscious effort.
A few months ago Linda and our literary agent, both divorced and now happily in love, urged me to go back on JDate. I signed on reluctantly and with expectations in the deep negative range. After a few weeks, and just at the point when I planned to terminate my subscription, I started dating an interesting guy. We took our time getting to know each other, and I wasn't concerned about whether our friendship would "go anywhere." I just enjoyed his company and focused on the present. Our relationship evolved slowly, and while I am definitely not a "mush," we are seeing each other regularly and very happily. No matter what happens, I am grateful that he came into my life.