Don't move anywhere without a solid job offer.
It sounds like the guy is offering only informal work, and won't be making a job offer letter soon, if ever. That's too much of a risk.
If you really want to move to California (and I just did! It's wonderful!), apply for jobs there. If you can afford to relocate yourself (figure $1200+ for a U-Haul, if you need one, plus a few nights in a hotel on the way and until you find a place to stay, gas (extremely expensive. U-hauls get about 11-15mpg), and food, maybe $2000 total), then your job options are a little better. Basically, "professional" jobs will pay relocation. Jobs that don't require a degree probably won't pay relocation, unless it's mid-career.
But once you land a job, and one that you have an offer letter for (which states things like when to start and how much you'll be paid), it's just too risky to move cross-country. I definitely wouldn't have moved if it was just some friend who was offering a job informally.
Also, NTs HATE HATE HATE you asking them why they're acting weird. NEVER NEVER NEVER bring that up. If they're acting weird, the safest thing to do is back off. This is coming from extensive personal experience.