Most Helpful Guys
Since this one was suppose to be your tenth date, previous nine are speaking in favor that he does wants to see/date You and he probably is telling the truth
but it doesn't have to be the truth what he is saying, it is just an indicator your previous nine dates
He reschedules if still wants to see you. After 9 dates I expect he was really sick. Your worry seems unreasonable.
Most Helpful Girl
People get sick. I'd give him the benefit of the doubt, especially after 9 dates.
If this becomes regular, then worry. But not on a one time thing