I will give you an example of not just true love, but also that mythical beast love after death.
The woman I speak of goes by the nickname Gaga, but her real name is Katherine. She is, if I am not mistaken, now 80. Her husband has been dead for longer than I've been alive, yet she still signs all of her cards and correspondences with both her name and the name of her late husband, and speaks of him fondly every so often.
She is also one of the kindest, most helpful, and loving old ladies I have ever met. Not a negative word about anyone.
This woman isn't even related to me, but she has been as a grandmother my entire life, and not just to me, but all sorts of folks in the town I grew up in. She has been so giving to everyone and asks for nothing in return.
So I reiterate, love, both romanticand altruistic does exist. It may be rare, but it's there.