What team do you have 3 rets ? 3s is different than 5s. If you can, don't burn everything upfront. Especially, the defensive CDs, burn it when the paladin bubbles. Divine Protection,Holy Radiance, Hand of Sacrifice, use them when the paladin healer bubbles. Since you got 3 stuns, use it to stun DPS. If the dps trinkets it, repenance him immediately. This needs a bit of practice but doable.

Once bubble out, definitely sit on the paladin. He can't BOP himself anymore. so BOP is useless if you sit on him. Bubble is short you should be able to live through it if you have CDs.