What a gift to have your experience as an example of what love is. You have demonstrated love and caring and responsibility because you CHOOSE to - not out of any reluctant sense of obligation!
I grew up in a blended family and called a woman Grandma who was related to me only via my BROTHER - notice I did not say "half" - my father was a giving person who welcomed family members of all six of us regardless of who was related by blood as he was wise enough to know that it really did not matter.
We all benefitted and I still to this day do not understand how a father or mother can dismiss the threads that become the tapestry of life.
I would say BLESS YOU - but it is unnecessary. You already ARE !!!