Trying to stage an alignment change and friendship between two player characters with much tension

I have a D&D 5e group of 5 (Four PCs, one DM), of which I am a player:

  • My character – Chaotic Neutral Human (however hope to gradually move to Chaotic good following an epiphany) – (Rogue (lvl 7)-Bard (lvl 1))
  • The other player in question’s character – Probably Chaotic or True
    evil – (lvl 8 Elvlish Sorceress with Chromatic Dragon-blood)
  • An Aismer Cleric – Lawful Good
  • A rock-gnome druid – lawful good

My hope is that my character and her character will become friends in order to bring the party more cohesion, and I have discussed this with her. We’re trying to figure out the best realistic way of that happening, but I’m struggling to figure it out. Her character is very hot-headed, very prideful, very power-hungry, and my character seems to get on her character’s nerves quite often. Her character seemed to appreciate my character’s poetry, but beyond that, there seems to be no kindness towards my character. Her character had a bad upbringing – as a lab rat – raised to value power over everything else – however she has a good uncle who I have met. I was thinking of using the disguise of the uncle alongside charm person to essentially extract backstory information, use that in a grand plot to befriend her, however even that would be risky.

Do you have any advice as to how to do that?

Many thanks,

Rhythmic Sheep