wild rock is yaoi, so here is a list of yaoi love-hate relationships
http://www.mangago.me/people/tag/170865/rival/
These maybe?
http://www.mangago.me/read-manga/koi_wa_ichiya_ni_shite_
http://www.mangago.me/read-manga/darkness_hound/
http://www.mangago.me/read-manga/kaizoku_game/
But if ur looking for those actual "killing" like more like tragedy ones then sorry, I don't really read that.(/TДT)/
Here is a link to love-hate relationship list: http://www.mangago.me/home/mangalist/28520/
Can you recommend me any manga like wild rock which story they're hostile but they're love each other. please...
thank you... (=・ω・=)