Handling a break up Watch
It's also normal for youto feel hurt, 2 and a half years is a long time. You could try and talk to someone close to yo about how you feel (lol a break up song just came on heavy by orla gartland you should listen i think it would describe how you are feeling and it could help)
Other advice that I might give to you is let the feelings go through you and wait for them to pass which they will.
Much love to you during this hard time <3 <3 <3