Should I drop him..

I've been seeing this guy for a couple of months now and I feel very comfortable with him. I've never had a boyfriend ever, so I can't compare him with anyone. We were suppose to hangout today, but he cancelled the last minute. I was already dressed up, in the place we're meeting, but he cancelled. He needed to rest from all the tiring things he did this weekend. He works eight or more hours during weekdays and has a lil part time job during Saturdays. I completely understand that he was tired, but he could've just told me we couldn't hang out today. I was very disappointed and upset because I haven't seen him in two weeks. I'm very upset of myself too for expecting too much from him, I was so excited all weekend about this. Any advice?