Once again, my car won't start...

[boost_it7]

My bone stock KA24DE was starting fine for about 2 months, and i've just been cruising around with it. Well, I stalled it and when i tried to start it back up, it wouldn't start. I tried starting it several times over a few minutes... nothing. I popped the hood, and saw that the spark plug boots were loose. I popped them all back in, and still nothing. I'll pull the spark plugs out either tomorrow or on tuesday to see if there's anything wrong with them. For now though, does anyone have any ideas?
This happened to me before (exact same scenario) and it was a bad starter relay. Since then, i replaced the bad relay, front crank seal, spark plugs, cam cover gasket, and removed the upper chain guide, but the car ran fine for a couple of months after doing this stuff, so i don't know what's going on. Could the relay I JUST REPLACED already be bad?
Someone please help me.