Got lonely after the rs ended

So i was in a relationship and it's gonna turn 1 year soon enough but eventually i was the only one who was leading it but it failed now I blocked people for her I did everything I lost friends and all gave efforts even tho didn't got em back all she saw was mistake I did but never the efforts and cause of which I don't have any friends now and it just makes me feel lonely and I feel like my relationship was just one sided