I'm a married pilot so I'll chime in (however I'm military, with its own set of advantages and disadvantages in the realm of happy marriages)
If you're getting into marriage simply to check a box, ie. "I'm 30/35/40 and I should be married by now" then I wouldn't suggest it.
If you're getting into marriage ultimately to get something out of it for yourself, then I wouldn't suggest it.
If you do get married, and if your wife doesn't work (decides to stay home with the kids or what not) and if you can support your family through flying...then well done. If not, you can always take your kids down to the local airport on Sundays and regale them with tales of how Dad used to fly.