I WANT SPOILERS!!!!! i just wanted episode 10 what happens when natsu and the three?

go to the island do they suceed s cl and who wins. is Gerald bad? is he mystogan? also who stroger laxus or mystogan. also who does erza like and why? and lastly how does every1 react when natsu completes the misson? PLZ ANS ALL PARTS OF QUESTION AND I DO WANT SPOILERS