Congratulations! However I have been involved in about a dozen the last 2 months and have a little bigger body of knowledge to draw from. When a buyer walks once from a transaction the likelihood they will do it again is relatively high. I know hundreds of productive agents and every one of them will tell you the same. I’m guessing the the property was located soemwhere where the RE is a wee less active than around here where the market is full of flaky buyers. The contract in CA caters to flaky buyers and they can easily walk with no financial loss where as that is not so easy in other places. Having a committed buyer is as important as having a qualified buyer in a market like this.