What is an internal conflict with Parris (Act 2, 3, and 4)?

It's like I said before, Rev. Parris does not show much internal conflict. He is looking out for his own interests throughout the play. The only thing that really concerns him is that he holds on to his position and status in Salem. He would like to nail John Proctor for witchcraft only because John has been a constant thorn in his side. This, however, does not mean he is conflicted. He was self-centered long before the witch stuff happened. There is no textual evidence that he feels guilty about all the nasty things that he does.