S.C. Code Ann. § 20-3-620
(B) In making apportionment, the court must give weight in such proportion as it finds appropriate to all of the following factors:
(2) marital misconduct or fault of either or both parties, whether or not used as a basis for a divorce as such, if the misconduct affects or has affected the economic circumstances of the parties, or contributed to the breakup of the marriage; provided, that no evidence of personal conduct which would otherwise be relevant and material for purposes of this subsection shall be considered with regard to this subsection if such conduct shall have taken place subsequent to the happening of the earliest of: