Quick overview, tb:
In the EU, Luke Skywalker is indeed married; his wife, Mara Jade, was an untrained Force-sensitive who had been employed as a Hand of the Emperor, carrying out Palpatine's will. They first met when she tried to kill him, to avenge the Emperor. It worked out rather differently than she had at first planned. They had one child, Ben Skywalker, who has been trained as a Jedi. Also, Luke trained Mara in the ways of the Jedi, although it didn't entirely take.
Han and Leia did marry, and had three children; the twins, Jacen and Jaina, and their youngest, Anakin.
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Sodium is a metal that reacts explosively when exposed to water. Chlorine is a gas that'll kill you dead in moments. Together they make my fries taste good.