Is he even interested?

I have been single for over a year and a half, and I finally met someone on a dating site who I'm both attracted and interested in. We had a supper and movie date night (which I was very shy during), and while I enjoyed our time together, I had a hard time reading his vibes.

We had set up a second hang out to go bowling, but it ended up being cancelled. All week, there had been a few problems to complicate our meet (his tuberculosis test and other paperwork in finalizing his nurse assisstant employment; last minute shift at his current job on the day of; not feeling well the day of), which I'm not sure were either genuine or a way for him to get out of hanging out.

Now, his profile says he is looking to date and find a relationship, but many of my friends have given different assessments of him (ranging from "genuinely busy" to "he's playing you, move on." Some of his reasons seem genuine to me, but the last minute cancellation really adds doubt in my head. Another user said they had spoken but when he tried to meet, my date told him right off the bat that he was dating someone (which matches what he told me when I asked him if he had ever met anyone from that site).

He seems to be an up-front guy -- but again, the parallel kind of unsettles me. I had previously experienced someone cancelling three consecutive meets on me, and I'm not in the mood to repeat this again. My question is: is this guy even interested in me, or am I just blowing this entire mishap way out of proportion?