Welcome to our forum.
Sorry things didn't work out with the guy you were with, but it sounds like it's for the best. You will be able to learn about polyamory on your own and draw your own conclusions.
Have a look around on our site and see what threads call to you. Post any thoughts or questions you may have. That should get you started.
Glad to have you with us!
Love means never having to say, "Put down that meat cleaver!"