something similar happened to me not long ago. i was in a bad relationship with marc for a few months and had to get out but had no where to go. A friend from work said that she had a room to rent and i was welcome to it. i packed my things while he was at work and i was gone. after a few months of living in cindys apartment he and i started to be able to be friends and put the past in the past and agreed that maybe we were better friends but he still told me he had feelings for me. I was seeing someone new and was having a few problems there and marc was there with a bottle of wine and chocolate to make me feel better and to talk to me about this new relationship. Cindy and marc were huge support for me and talked to me about my options.
that same night that marc came over to make me feel better, they both wanted me to go out and get my mind off things so i agreed and went out with them exepecting a fun night at the bar with friends.
that night cindy and marc decided to go home together and leave me at the bar without a ride home and not even a goodbye- all of a sudden they were both gone. i was 20 miles away from home with no money and no coat as it was in the back of his car that we took to the bar. i had to hike 20 miles all the way home in november with no coat with my roomate and my X boyfriend getting it on in his apt. (wich was once our apt)
i never forgave either of them for kicking me when i was down. i moved out as soon as i could and never spoke to him again and when she came home the next morning it was not a pretty scene to say the least...
you are more than entitled to feel betrayed. that was a very low thing they did to you.
neither of them have a right to blame anyone except themselves. not one of them care about your feelings they are self absorbed in themselves and couldnt bother to take 2 mins and consider your feelings.
i dont know the story about your babys dad and why you arent together but it sounds like youve been through alot what ever the story is.
confront them, dont hold any feelings back, after all they obviously didnt hold anything back when it came to hooking up so why should you censor yourself for the sake of their feelings. i wouldnt keep them on a leash at all, id let both of them go.
unfortunately you cant fix the feeling of betrayal, its one of the worst feelings ever. the only thing that helped me through my hard time with marc and cindy was starting fresh and putting BOTH of them in my past. as long as they are both in your lives the feeling will always hang around.
there are plenty of girls out there who would never do anything to hurt you and value your freindship and there are guys out there who will love you and respect you. these people who did this to you are not the last people alive that will be your friends and you owe them absolutely nothing.