Finally got around to fixing the burst line about 2 weeks ago. Wasn't too hard, all things considered. I definitely recommend getting a good flaring tool, so you don't have to stop halfway through and get a ride to the store for a new one. Also be warned, the AutoZone tool I bought at first was hot garbage. NAPA had a better version, but none looked as nice as the inline-style tool others have recommended on this thread.
For some reason I can't get my pics to upload ("Your submission could not be processed because a security token was missing"), so I threw up an imgur album for anyone interested: https://imgur.com/gallery/SqZFj
It looks like my line didn't blow at the two-way connector, but instead where the rubber coating was removed from the rear lines to connect them to the car. It would be a pretty simple thing to check for most anyone on this forum, so I'd suggest taking a peak next time you're under your car.