If he's good enough to marry, he'll almost certainly not still be around when you're ready to make that leap.
The same is true about women as well. I'm amazed that Patti wasn't scooped up, but then I told her that on the first night I met her.
Which reminds me of this. "A good man is hard to find, not hard to keep."
Paraphrased: if he's good enough to marry, and you do, he'll be happy to stick around if you treat him well. As Penelope says, "Everyone has a breaking point, and considering how basic and few a good man's needs are, it's really not that hard to keep him happy and home."
ETC: Further down in the comments, this gem:
You should only take a feminist advice as to what type of cat to buy.Ain't that the truth. After all, as Gloria Steinem said, "A woman needs a man like a fish needs a bicycle." Unless she expects the bicycle to fertilize her eggs. Or cuddle with her. Or tell her that she's beautiful. Or surprise her with her favorite treat after a trip to the store. Or quietly listen to her vent about work. Or love her children from a previous relationship like they are his very own.
Feminists are idiots.
Great relationships are precious and shouldn't be taken for granted. By a man or woman.