Complex sentence: It is also revealed that Michelle is adamant that Mark does not find out about his real father, but Mark (Ned Porteous) then arrives in Walford, though Michelle claims that Phil is lying because he is an alcoholic who hates her.
Split into simpler sentences: It is also revealed that Michelle is adamant that Mark does not find out about his real father, but Mark (Ned Porteous) then arrives in Walford. She later tells Mark that Phil is lying because he is an alcoholic who hates her.