Is there any evidence that Severus Snape from J.K. Rowling's Harry Potter was ever loved romantically by a woman? If so, please provide evidence that he was loved - canon evidence only, please.
JKR says "no". In an 1999 radio interview for WBUR Boston, she explicitly confirmed that Snape is utterly unlovable (by others) and implicitly confirmed that his only love was for Lily (who's dead).
Lydon: Er - one of our connec- ... one of our internet correspondents wondered if Snape is going to fall in love?
JKR: Yeah? Who on earth would want Snape in love with them, that is a very horrible idea. Erm ...
Lydon: But you'd get an important kind of redemptive pattern to Snape
JKR: It is, isn't it ... I got ... There's so much I wish I could say to you, and I can't because it'd ruin ... I promise you ... whoever asked that question, can I just say to you that I'm - I'm slightly stunned that you've said that - erm - and you'll find out why I'm so stunned if you read book 7. And that's all I'm going to say.
If JKR says that no woman would want to be loved by Snape, it follows logically that the opposite must be true (e.g. that no woman could love him, because who would want their love to be unrequited?).