Closest words that come to mind are: pleasing or pleasuring, but somehow these don't catch the meaning.
Do you guys know any other words?
Context:
"I often thought about what I felt. If I were to use a single word to describe it, it would be ______, but essentially I made love to him not because I enjoyed it, quite the contrary, I did it because I cared about him and wanted him to have a good time even though I didn't like it."
It could be a noun such as sacrifice for example.
Best Answer
I'd suggest selfless.
From the Cambridge dictionary: