im confuse help

ok duncan was so crushing on her in tdi then tda a little to gwen but more to courtney in special broke up but coudnt deni theyre feelings for eachother they made up and made out thats what led them off the cliff even in tdwt in the 1st episode he was still in luv with her by holding her bag and singing for her and agreed to climb the pyrimade with her but when he returned in i see london all of a suden hes mad at her and hates her and is falling for gwen flirting with her and kissing her and when they were paired up he didnt like it and called her a loser the next episode and when the episode he was elimanated he said he was happy she fell out of the plane now what i think the new producers like dxc maybe paired dxg for drama or fan reaquest i dont know im confuse please help me