I don't know your complete history with your Josh (my fiancee is Josh, too), but I can tell you that our road to being engaged was not an easy one. We had plenty of break-ups and other not-so-stellar moments and there were times I thought it was a lost cause. But, I perservered. And now I'm engaged to him. (If you'd like to talk more in depth, feel free to PM me. It ended happily, so I don't mind talking about it! Besides, without all those bad times, we wouldn't be the people we are today.)

Go with what your heart tells you - it's a lot more trustworthy that society realizes.