It is currently unclear what he has against her. It is clearly partly because she is in Thunderclan, and it is possible that he knows Jayfeather brought her back from the brink of death, although it's unlikely he could have found something like that out.
Whatever it is Poppyfrost doesn't seem aware, although she most likely had some sort of meeting or at least interaction with the dark tom. This is made clear when she says (something like) "I had no idea that Breezepelt had fallowed me all this way." Whether their meeting was a coincidence or planned is unclear, but Poppyfrost recognizes him rather quickly. She also seems to know him well enough to believe that she can reason with him, or plead.
All of this evidence can lead a reader to believe many things, and I don't think this is a question Vicky would answer in a chat, or else the hints would have been far less subtle. She has, however, admitted to wanting to give Poppyfrost more of a spotlight in the series, so it is possible that this can lead to a major plot point. But for the truth you'll have to wait until March for Fading Echoes, and hopefully not longer.
Breezepelt holds grudges against Poppyfrost because he blames her for his mother, Nightcloud, being hurt during her kitting due to the stress caused by Lionblaze's perceived betrayal when he found out about their relationship. Breezepelt feels that Poppyfrost's connection to Lionblaze brought negative consequences to his family, leading to his resentment towards her.
that's false because Poppyfrost is already with Berrynose but Jayfeather did save her from Breezepelt and Brokenstar.
Yes, Breezepelt wrongly believes that Jayfeather is in love with Poppyfrost and that's why he wanted to kill her. Breezepelt's misguided perception stems from his jealousy towards other cats and his desire to cause trouble within ThunderClan.
Yes, Breezepelt attempted to kill Hollyleaf in the Warriors series. He was manipulated by Dark Forest cats and held a grudge against the ThunderClan warrior because of their past conflicts.
Hazeltail does not love Breezepelt in a romantic sense. They have a strained relationship due to their different clan loyalties and the conflict between ThunderClan and WindClan.
she is born during a badger attack to sorreltail and brackenfur. her brother died before he was six moons old.she grew up and got her warrior name poppyfrost. her sister honeyfern died to a snake bite while saving briarkit. berrynose was honeyferns mate but after honeyferns death he fell in love with poppyfrost. she got pregnant with berrynoses kits. she always had to stay in the nursery due to berrynoses over-protectiveness. she thought he didn't want to see her so she went to the moonpool to talk to her dead sister. but breezepelt from windclan followed her. jayfeather went to look for her and found her at the moonpool but breezepelt was there too. he attacked jayfeather saying he should never have been born. jayfeather defeated him with thehelp of honeyfern and took poppyfrost back to camp. she soon gave birth to two kits cherrykit and molekit.
Berrynose is Poppyfrost's mate.
Yes, there is a battle at the Moonpool in the Warriors series. The Moonpool is a sacred place where the Clans come to share dreams with StarClan, and battles have taken place there when tensions between the Clans escalate.
Yes, Hollyleaf hates Breezepelt because his and her father are both Crowfeather, but Breezepelt and Crowfeather are in WindClan.
No,he loves them both the same,but he probably will be with poppyfrost in starclan because he wantes her more
She is actually the half-sister of Breezepelt. Breezepelt's mother is Nightcloud, and his father is Crowfeather. Hollyleaf's father is also Crowfeather, and her mother is Leafpool.
Well there certainly is a pattern to the warrior books. Firestar killed his half brother Scourge and Brambleclaw killed his half brother Hawkfrost so Jayfeather or Lionblaze will kill Breezepelt. I would think mabe even Leafpool will kill Breezepelt trying to save Jayfeather or Lionblaze because she loves them and mabe Breezepelt set up an ambush or trap. Moonshadow & Icecloud:)
Breezepelt's grandmother on his Father's side is Ashfoot. His grandmother on his mother's side is unknown.