Complex sentence: He later backed out, realizing that he could not make the Queen chose between the people and him nor he wanted her to chose after learning that even if he stayed, it wouldn't make much difference rather it would make it difficult for the Queen.
Split into simpler sentences: He later backed out, realizing that he could not make the Queen chose between the people and him. He didn't want to stay after learning that even if he did, it wouldn't make much difference and rather would make it difficult for the Queen.