No Sex Before Marriage: Did I Overreact?

There's this guy that we have been dating for 6 months, we love each other very well and we plan on marrying each other.

Here is the deal, we plan on no sex before marriage due to personal reasons. I don't ask for money also, we do cuddle and kiss sometimes. But not sex!

Of recent, he has been acting strange and wants to go beyond our normal cuddle level. I cautioned him about this and he promised to change! But he still does this.

Yesterday it happened again as I got furious and asked him to leave.

Did I overreact? I called, he has not picked up since yesterday.