What does it mean if a good friend and she is married, we texts each other a few different times a week? She text me and told me that she dreamed of me. Does this mean anything?

It means you are to close to the boundaries of good behavior.

She also told me next time I am in town she wants to have lunch? Does this mean anything? Is she flirting?

No there is nothing in it try not read too much into it the fact she told you about the dream and just because she wants to have lunch she considers you as a friend

Dreams are just dreams, maybe she told you because it was just weird. As far as lunch goes, there is nothing about friends having lunch together. However, if it seems to be going further on your lunch time, leave. Respect the marriage.

Depends on the dream, maybe it was just a family bbq, but if it was something inappropriate find out if she is actually wanting that, dreams are harmless. But if she wants more, then that means you are going to have to respect the relationship and back off.

It means that I would watch out for her husband waiting on me some day.

You need to stop talking and texting with a married lady.

She loves you and she dream about you!!
Silent treatment that was my classmate did to me... I don't call it it respecting people marriage because It makes the situation worst!!
Feeling are just feeling if you take them seriously they will be more troubling!

I am great friends with a married woman. We text, we write to each other on Facebook at times... we don't now, will never, and have never done anything with each other. We're only friends. I see nothing here.

Of course, I am only going by what the OP said and there may be more to it but just texting and a simple dream may not mean anything.