getting over a break up?

Katorina
I'm scared of commitment so this boy tried extremely hard for a year and a half to win me over. When I finally excepted I loved him we dated for around a month. A tragic suicide commitment ended his best friends life which caused my now ex boyfriend to use every excuse in the book to leave me. Which is understandable he needs his space, but I tried and am still trying my hardest to be there for him. As of now we're officially over and I can't seem to shake the ache and missing I have over him. Any tips? :/