Dating a single parent can be a lot like struggling with a toddler. They punch you in the eye, spill juice in your bed, and say, "I love you SOOO much."
I believe we cannot heal from our divorce/relationship trauma without getting back into the ring and giving it another go. Only IN RELATIONSHIP can we learn how to be healthy in a relationship.
As single parents, I believe, that my kids and my connection to them are more important (just for this short period of time) than my happiness or my new relationship.
Don't give up. Just because all of your previous relationships have failed, does not mean that the next date might be The One.