I'm not going to bother reading this thread (not even the OP) before posting my response:
It's worth it, because love is the ultimate form of loyalty. An ISTJ that loves you is one of the greatest gifts a non-ISTJ can ever receive.
A big AMEN!
"No ray of sunshine is ever lost, but the green which it awakes into existence needs time to sprout, and it is not always granted to the sower to see the harvest. All work that is worth anything is done in faith." - Albert Schweitzer
"Love is not a product of reasonings and statistics. It just comes--none knows whence--and cannot explain itself." -Mark Twain, Eve's Diary
"Laughter which cannot be suppressed is catching. Sooner or later it washes away our defences, and undermines our dignity, and we join in it -- ashamed of our weakness, and embittered against the cause of its exposure, but no matter, we have to join in, there is no help for it." Mark Twain