“Where there is such a degree of friction between equally competent spouses so as to make joint decision-making impossible, custody should be awarded to the parent who is more likely to ensure that the child reaps the benefit of both households: see Huisman v. Stefaniw (1997), 26 R.F.L. (4th) 406 (Ont. Gen. Div. Fam. Ct.); Boukema v. Boukema (1997), 1997 CanLII 12247 (ON SC), 31 R.F.L. (4th) 329 (Ont. Gen. Div. Fam. Ct.); and Wilson v. Wilson, 2015 ONSC 479 (CanLII).”