Are you sure in the current BBC version, Holmes wasn't romantically interested in Adler? He did save her life.
In the current CBS take, Holmes' thought-murdered GF Adler turns out to be Moriarity.
FWIW, In a Rathbone/Bruce voiced [US] radio epi, the retired Holmes visiting retired Watson is the object of a successful con by Adler's adult daughter.
I am only speaking of Holmes as written by Arthur Conan Doyle.
I heard the OTR radio show about Irene Adler’s daughter. Interesting.