No.

It is very hard work to be “just friends” with someone you want to be “more than friends” with, and it rarely leaves you better off in the end. You will always have the low ground in any interaction, you will always want more from them than they are able to give you. It’s not fair on you and it’s not fair on them. Rarely, the longed-for “friend” in this situation has a change of heart, but the odds are against you and what are you missing out on while you pine for them?

Cut ties. Mourn what never was, then pick yourself up and find someone who wants you, too.