As far as Alexander's first appearance goes, when K'Ehleyr first appeared, it seemed Worf had already had a previous relationship with her, so, I assumed she already had Alexander from that previous relationship, and just didn't bother telling Worf about him?
Watch "The Emissary."
Yea, when she came onboard it seemed like he was already bitter with her, because of a previous relationship, and the Holoprogram and then the bonding rejection was just more of the same as their previous encounter. I mean, yea, obviously Alexander could
be the result of that encounter, but, it didn't seem conclusive at all to me he definitely was.
One Day I hope to be the Man my Cat thinks I am
Where are we going? And why are we in this Handbasket?