Collected Thoughts

Gunn and Fred hooked up after Connor was born, so I'm not sure what's going on with them. They broke up partly because Gunn took it into his own hands to kill the professor who sent Fred to Pylea. Fred wanted to send him to a demon dimension to suffer, Gunn didn't want Fred's hands to be dirty (I think but hey! Fred survived in Pylea and she does have a taste for violence). That was pretty much the beginning of the end, Gunn was also having self esteem issues about Fred's intelligence.

Because we don't know what Wolfram and Hart did about Connor (did they just erase the memory of Connor and leave everything the same? Did they alter reality to take out Connor's existence entirely?) We don't know how that has effected, well, anyone.

Spike's around because the WB sucks and wants him on the show. They think James Marsters will bring in the female viewers which is why he's being used to promote the show almost more than DB.