I would suggest trying to find out how this person feels by using a more traditional divination method. If you want quick and easy answers I'd go with pendulum or another simple yes/no divination, and if you want a more detailed answer about this person I'd suggest a tarot spread.
If you don't own tarot cards or a pendulum you can make a pendulum very easily - it's just a thing dangling on a string. You can use any weighted thing tied to a string, you can use a necklace - my boyfriend successfully used a loofa on a string (though he's a huge weirdo).
I wouldn't suggest actively seeking to receive your answers through dreams unless you're already good at remembering dreams - just because the dream means something doesn't mean it'll be any easier to remember. If you do choose to go that route I'd suggest meditating on the question and petitioning a deity for assistance. I'd suggest either a deity like Mercury (communication) or Thoth (knowledge/truth).
And no, I won't live in San Diego until around June. I have visited a good store down there though! Lady of the Lake - it's on University just west of 805. One of the people in there (seems to be the manager or owner) can be kind of stiff and grumpy-seeming, but he just takes a while to warm up to you. My only complaint is that their supply of herbs and oils is a little limited.