I knew they were very good friends but I really thought it was platonic love. Mickey and she were busy with others at the same time. Not saying you're wrong, just news to me.
I was into classic film actors, was a huge fan of Ava Gardner so read/know a lot about Rooney, he being her 1st husband and all...anyhow yea, as far as I know/heard, Rooney and Garland were platonic; however, he was an ass to say as I recall, that she had a crush on him but he wasn’t interested cause she wasn’t pretty enough for him. Given her huge insecurities about her looks and constantly comparing herself to the legendary MGM beauties like Gardner, Lana Turner, Hedy Lamarr, etc...what a hurtful, lousy thing to say about/to his good friend!