Electrical wiring-ceiling fixture - Straight Dope Message Board

I just replaced a ceiling fan with two pendants in my kitchen. The original box had an supply line, a line going out to the rest of the lights in the house, and a line going to the switch. I marked the two white wires and one black wire that were connected to each other and not to the fan, but unfortunately, in the process, the black wire became unmarked. I replaced the ceiling box with a junction box and added a 14/2 line going over a few feet to the pendants over the island.

Now, when I turn the power on, the pendants stay on regardless of switch position, the other kitchen light comes on fine (ahead of the pendants on the run), and the bedrooms don't get any power at all (after the pendants on the run).

I rewired my whole kitchen several years ago, but for some reason, i can't remember all this? I assume I just confused the black wires, but can someone explain what should attach to what? Thanks!