Should I bother???

Hi ladies,

Just want some thoughts and opinions. I met this guy at work we started talking we are in different departments but we see each other daily. Flirting turned into talking and then we decided to hang out. He invited me out for drinks picked me up at home and we ended sleeping with each other. He didn’t contact me at all for about 3 days then I see. Him at work and he messaged me saying he had texted me saying he was going for some training. I never got any text which is what I replied and he never replied after. 3 days past again and we seen each other at work. He then messaged me asking why I didn’t make eye contact with him which I didn’t I just been avoiding him. Then he messaged asking if I was mad? I did not reply. Then another message saying I guess you are mad sorry I did you wrong just been so busy with training for my job. I did not bother replying. Should I have replied? It just feels super awkward because I’m sure having sex was all he wanted. No one is busy 24 hrs a day to not bother texting something. Help!!!