It's a long story. Or maybe not that long, really. [He's blushing bright red by this point. He can't help but be grateful Kirk has decided not to make this any more awkward for him than it is. He doubts Jack has any problem telling anyone who will listen and Spike hardly talks to anyone so it's not likely to come up in conversations but for himself he doubts he'll ever feel entirely comfortable discussing it. Then again he's never liked sharing much of his personal life no matter the details.]
There's always other fish in the sea. Or under it, in our case. Maybe you'll get lucky elsewhere.