“Cruelty is in its nature a cumulative charge, and so an accumulation of minor acts of ill treatment causing or likely to cause the suffering spouse to break down under strain constitutes the offence; thus, cruelty may consist in the aggregate of the acts alleged in a petition and each paragraph need not allege an independent act of cruelty sufficient in itself to warrant the relief sought- See Green v. Green (1864) 33 L.J. P.M. and A. 64; also Bethune v. Bethune [1891] P. 205.”