I think it's pretty self-explanatory what self-absorbed is, and
it's pointless being semantical about it, because the definition of it is implied to be negative.
Create your own word to explain what you mean.
Loving oneself is not the same as self-absorbed.
Self-absorbed just means someone who thinks too much about their own needs
that they don't even have the time to care about anyone else
(it also implies lack
because
if you're focusing on your own needs too much, it means
you perpetually feel you don't have enough of something).
Self-love means that you have tended to your needs to the point of abundance where you feel you can share this love with others.