Being happily married is not the same thing as being happy all the time. Being happily married is understanding that marriage is a contract and a commitment. Being happily married is putting the success of the marriage above either person's individual needs or desires. The marriage has to be bigger than either person.
After I was divorced and middle-aged and back in the dating pool, I unfortunately had to kiss a few more frogs. One I recall was a tongue-darter -- very disconcerting and unromantic. And another one was worse, he had bad breath and tasted like a dried-out steak every time I kissed him. Beef is okay to eat, but NEVER to kiss.
Should I wait until I am in a serious relationship and absolutely sure the guy is right for me and will be supportive of my son? If I do wait and find that I have developed feelings for this man only to discover that he won't be supportive of my son, then I must end the relationship. So since I won't know how supportive he'll be until I take off my mask and test the waters, that's what I do.