Complex sentence: Collins' intimate connections appear to have been no less healthy, vigorous, and well-conducted than other aspects of his life: his relations with women affectionate and normal, providing no evidence either of inexperience, excess or aberration.
Split into simpler sentences: Collins' intimate connections appear to have been no less healthy, vigorous, and well-conducted than other aspects of his life. His relations with women were affectionate and provided no evidence either of inexperience, excess or aberration.