I had a bad proposal too. My xh and I were sitting in his mother's living room watching TV and he had been drinking. Out of his mouth came "let's get married". I just looked at him and laughed because I thought he was drunk. That was in the month of August and come January/February, he was having second thoughts and I had no issue w/not marrying him at that time.....but before he went back the Galena, Alaska for the last part of his tour there, he again asked me.
I should have seen all of the red flags, but when you are 20...you don't think about them. I, too, question a lot of things from that time and all the way up until after our divorce.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.