Pages later (Chapter XXXVII), it is acknowledged that  He, too, felt that this was their last free intercourse. 
( ( Pages later ) ( ( -LRB- ( ( Chapter XXXVII ) -RRB- ) ) ( , ( it ( ( is ( acknowledged ( that ( He ( , ( too ( , ( felt ( that ( this ( was ( their ( last ( free intercourse ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) ) ) ) )
(ROOT (S (ADVP (RB Pages) (RB later)) (PRN (-LRB- -LRB-) (NP (NNP Chapter) (NNP XXXVII)) (-RRB- -RRB-)) (, ,) (NP (PRP it)) (VP (VBZ is) (VP (VBN acknowledged) (SBAR (IN that) (S (NP (PRP He)) (, ,) (ADVP (RB too)) (, ,) (VP (VBD felt) (SBAR (IN that) (S (NP (DT this)) (VP (VBD was) (NP (PRP$ their) (JJ last) (JJ free) (NN intercourse)))))))))) (. .)))
Later in the book, it is described what he did after their last intercourse.
( ( Later ( in ( the book ) ) ) ( , ( it ( ( is ( described ( what ( he ( did ( after ( their ( last intercourse ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (ADVP (RB Later)) (IN in) (NP (DT the) (NN book))) (, ,) (NP (PRP it)) (VP (VBZ is) (VP (VBN described) (SBAR (WHNP (WP what)) (S (NP (PRP he)) (VP (VBD did) (PP (IN after) (NP (PRP$ their) (JJ last) (NN intercourse)))))))) (. .)))