Love and Lear(n)?

Reminder of my big question: What are the boundaries between love and sacrifice? Or do they exist?

Sacrifice didn't seem to be a big part of King Lear. In fact, the exact opposite was true. When I first decided on this question I was considering the kind of love we think of when we think of our sigficant other, or our family, or our friends...In most cases this coincides/coexists with sacrifice...hence the term sacrificial love. I seem to have forgotten the other kinds of love.

In Lear, sacrificial love is hard to come by, if nonexistent. The closest examples I can think of are Cordilia: she gives up her position and standing with her father for the truth. Kent: his loyalty could be deemed a sacrifice. Mostly, the book consists of self love, the opposite of sacrificial love. Goneril and Reagan's selfish lies to their fathr and secret scheming...Edmund's betrayal....perhaps this is what makes it a tragedy.

What have I gathered from Lear? If love and sacrifice are the same thing, they can't exist without the other--the true love package includes sacrifice free of charge. Without either, the love is defunct.