"The Flea"

When I read "The Flea", I was a little confused to what the meaning was exactly, but the way I interpret it, it says that marriage is evil and it can suck the life out of a person.  I get this from many lines in the text.  "Me it sucked first, and now sucks thee" and "The flea is you and I" are two quotes that make me think this.  The first quote is saying that marriage sucks the life out of both of the people.  And the second one is saying that each person is the flea in the relationship; not necessarily the marriage itself.