My ex and I split up a couple of months ago, it was kind of mutual and peaceful but he initiated it. We went out for three and a bit years; from the end of high school to the end of uni (we were at the same uni). We didn't always have a great relationship but overall we really loved each other. We always knew we were gonna break up after uni cause after that it all becomes too full on and we both knew we were too young for that. The break up has been pretty civilised with no big arguments or maliciousness. I've been hurting quite a bit but its not getting a lot easier, obviously I miss him but we are both trying to move on and haven't properly spoken for a while. However he's been liking a lot of my fb posts; photos, graduation posts, my mum's posts.. Why?