Just some guesses. First, it's pretty common for women to lose interest in sex after a couple of kids. Hormonal changes, being worn down by the kids, lack of privacy, etc., can all take their toll. Also, some women don't respond as much to erotic touch after a long day of having kids hanging off of them all day long -- the feel completely "touched out".
Second, I'd always be wary of statements that try to rewrite past emotional experiences. Hindsight and a different current agenda can recast almost any previous experience in a different light. What might at one time have been experienced as a positive experience might be recast as "the magic was never there". Gee, I can't imagine getting married if there wasn't at least some magic.
No sex on the honeymoon is a little unusual, but not that rare either. For some people, there's a lot of pressure, as you know everybody in your family is expecting you to have sex, which for some people is NOT a sexy thought.
