I use this thread to pick some interesting topics, that Phoebe said in new interview for MF DNES Magazin No. 43 (27.10.2016, in Czech, because he's been living in The Czech Rep for many years). He claim, that Freddie stopped singing in May 1991, when he left Mother Love unfinished. So it's propbably right to thing, that Freddie wasn't able to sing later in 1991, as was earlier said (by Brian?). Than Phoebe said, that Freddie knew ha had AIDS after Easter in 1987 and, when he realised that he is tired a lot after big concerts in 1986 and went on tests. Phoebe was told this information by Fred only one time, a month later. The third interseting thing was, that Phoebe thinks that Love Of My LIfe was not written for Mary, because the lyrics are rather what is said by "her" to him, not what Freddie says to Mary.
On the LOML point - unless I have the timeline wrong - it would be rather too soon after the break for her to come to that conclusion: Always being by his side. And for him to pick up on that. I guess we'll never know.