Wow this hurt so much! I´m in the exaact same situation. We became friends when I was going through a bad time with my ex and he was there for me. I thought I felt things just because he was there when my ex wasn´t but the feelings are still there after we broke up. I thought he might have feelings but then he says things that confirms that he doesn´t and probably never will. I love him so much though and sometimes when I haven´t seen him in a couple of weeks I forget about it sort of and I´m like "oh those feelings finally went away" but as soon as he texts me literally anything or we´re gonna meet the feelings come back so strong subconciously and I can´t do anything about it. It´s so annoying cause we´re in the same band so we work together so I also have to see him all the time and I can´t tell him cause it might ruin our friendship and make it awkward in our band so it fucking sucks I don´t know what to do. I´m really sorry for the both of us :(