I feel like Ipushed away all the friends I had

About a year ago I had a really tight friend group that I would be super close with. Now of course, I kinda ruined this because one of them was a girl and she asked me out and I got way to attached to fast and she realized she didn't like me that way. But after coming to terms with it (the best I could I still get really upset thinking about that situation) I was able to hangout with all of them again and at least pretend I wasn't hurting on the inside being around her. But slowly I got worse and worse at being fairly mopey around them. I worked with all these people so it was a work friend group but we hung out outside of work all the time. Most of them would slowly start leaving that place and I eventually got a new job as well. I also ended up moving out of my parents house and got myself my own place. I had roommates for a bit but then they all ended up needing to leave for personal reasons. I work different hours than all these people now so trying to get the schedules to line up is a bit hard. But over the past few months, any time I attempt to even try and talk to these people, they are super uninterested and cut the conversation off. If I ever ask to make plans, they cant make the time for it. But I know that they all still hangout just like we did before. So was it my attitude that made them all just want to cut me out? I haven't bothered asking any because well I figure they dont want to talk to me anymore and if thats the case I want to respect that wish. But it really hurts seeing them all still be together and silently kicking me out because im in a different place. So now im scared of even trying to make new friends because I feel like im just gonna get left behind again.