Does he still like me ??

So my ex and I go to the same university and yesterday was a very different day between him and I . ever since we broken up I havnt seen him stare down at me as much as he did yesterday and my friends noticed it too. and he tried to be more frendly with his waves and wa not but since I was doing so well getting over him for the first time I really didn seem to care. ..later in the evening as I wwas walking out with my friends I didnt eevn realise he was in the same space as I was and he was smoking .. My friend got my attention and for a minute it didnt even register to me what he was doing..

but when I did for summm reason I charged over and asked him and I feel so stupid and angry for me getting so furious that he was smoking and I even got more furious that he actually listened to me when I told him to put it out . I snatched it frumm it to throw it away and the entire time when I was soo mad he had a fat smile on his face and again as my friends noted was just staring at me up aand down. he for the first time in a while said the sweetest Hyee to me and even complimented me on my boots. none the less I was soo shocked and sad that I found him liek that that I didn care aboout ny of it . later my friend mentioned t me that the time when I didnt notice he ws there .. he saw me and had a full smile then too . except I didnt see it ..

so im wondering now . does he still like me?