Most people in New England experiance this. I assume the place where the line popped that you are talking about is between the frame and fuel tank, which is usually where it happens. If you get under there and look, most likely that area will be filled with pine needles, leaves or mouse house gatherings. All of those things are great at retaining moisture and salt and those are good at rotting brake lines.
Get yourself some GOOD brake line. I bought a roll of line that is a copper/stainless steel alloy. When you snake it through that section between the tank and frame make sure to put a healthy amount of electrical tape on the end of the line so no crap gets in it. Also, before you snake the new line there make sure to blow out that area as best as you can with shop air. I spliced my line back to original line that is sort of on top of the frame in the front drivers side wheel well. Make sure to spray some rustoleum over the coupling/original line.
Do not use regular steel line or the line that has a plastic coating, otherwise you will be replacing or patching that line again in not too long.