No, he will not, because he is trying to prove to his clanmates that he is still loyal to Windclan and took a new mate, Nightcloud, so he will not live with Leafpool in Thunderclan.
No. She will come back to ThunderClan and return to being a medicine cat.
They probably will because Leafpool is a warrior now. If WindClan and ThunderClan get into a fight again , Crowfeather might accidently pin Leafpool down. Because he still cares about her Crowfeather will leave her be and attack the nearest ThunderClan warrior (besides Lionblaze). And if Onestar sees this, he might exile him and then Crowfeather will join ThunderClan and he'd be mates with Leafpool again and he will have more kittens with her because he loves her.
Jayfeather belongs to ThunderClan and his parents are Leafpool of ThunderClan and Crowfeather of WindClan.
He would have chosen leafpool, but leafpool decided her loyalty was to thunderclan, so crowfeather chose nightcloud.
No. She runs away with Crowfeather but goes back to help her clan.
Hollyleaf's and Lionblaze's mother is Leafpool, a ThunderClan medicine cat. Leafpool has three kits with Crowfeather: Hollyleaf, Lionblaze, and Jayfeather.
***SPOILER ALERT*** The parents of Hollyleaf are Crowfeather of WindClan and Leafpool of ThunderClan.
Leafpool does not become a loner. She just becomes a warrior of ThunderClan and no longer the medicine cat.
In Sunrise, the sixth book in the Power of Three series, it is confirmed that Leafpool, medicine cat of ThunderClan, and Crowfeather, warrior of WindClan, are Lionblaze, Hollyleaf, and Jayfeather's real parents. Not Brambleclaw and Squirrelflight.
No, she does not. She is in love with Crowfeather.
Crowfeather does not hate Leafpool. He is only mad at her for choosing to stay in ThunderClan rather than being with him. He was only lying about not caring about her, because he was still mad, but does not hate her, and never did. In fact, deep down Crowfeather still loves Leafpool very much. It was also mentioned in Erin Huntern Chat that he still loves Leafpool and wants to be more apart of Leafpool's and his kits' lives.
Note: This is a spoiler that is only revealed in Sunrise. The Three's true parents are Leafpool of ThunderClan and Crowfeather of WindClan.