This is a pretty decent episode, but they lost me with that "love conquers all" bit.  It's been done to death!  An X-Files episode would never end like this.

BTW, the 70's were full of talk about aliens and UFO's.  There were a plethora of "actual" saucer photo's on TV.  Remember Nimoy's show called "In Search of..."?  The only reason there might be more now is because there's about a billion more channels now.