DECISION ORDER
ORDERED that the judgment is modified by (1) deleting the provision thereof finding that the home of the defendant's mother was separate property, and substituting therefor a provision that said property is marital property subject to equitable distribution, with the plaintiff entitled to 50% of the value thereof, and (2) deleting the provision thereof directing that the plaintiff provide her own medical insurance, and substituting therefor a provision directing that the defendant pay for the plaintiff's medical insurance; as so modified, the judgment is affirmed, with costs to the plaintiff, and the matter is remitted to the Supreme Court, Dutchess County, for further proceedings in accordance herewith.
The defendant contends that the plaintiff failed to establish a ground for a divorce based on cruel and inhuman treatment. However, the plaintiff demonstrated through her own testimony and that of her therapist that the defendant's behavior so adversely affected her mental well-being that it became improper for her to cohabit with him (see, French v. French, 262 A.D.2d 280 ; Meltzer v. Meltzer, 255 A.D.2d 497 ). The defendant's contrary testimony that he did not engage in such behavior merely posed a credibility question which the court was entitled to resolve against him (see, French v. French, supra; Gadomski v. Gadomski, 245 A.D.2d 579 ). There is nothing in the record which would require this court to disturb that determination on appeal (see, Elkind v. Berger, 266 A.D.2d 339 [2d Dept., Nov. 15, 1999]; Tortorello v. Tortorello, 133 A.D.2d 683 ).
Contrary to the defendant's contention, the court properly determined that the appropriate date for the valuation of the marital property was the commencement date of the instant action rather than the commencement of a prior dismissed divorce action (see, Nicit v. Nicit, 217 A.D.2d 1006 ; Sullivan v. Sullivan, 201 A.D.2d 417;Marcus v. Marcus, 135 A.D.2d 216 ).
It was a provident exercise of the court's discretion to award the plaintiff 50% of the marital property (see, Granade-Bastuck v. Bastuck, 249 A.D.2d 444 ; Kaplinsky v. Kaplinsky, 198 A.D.2d 212, 213 ;Kalisch v. Kalisch, 184 A.D.2d 751 ).
We agree with the plaintiff's contention that the defendant failed to sustain his burden of proving that his mother's home, transferred to him during the course of the marriage, was separate property (see, Lischynsky v. Lischynsky, 120 A.D.2d 824 ; Pelletier v. Pelletier, 242 A.D.2d 325 ; Seidman v. Seidman, 226 A.D.2d 1011, 1013 ). That property is to be divided equally between the parties.
Under the circumstances of this case, we also agree with the plaintiff's contention that the defendant should be directed to pay for her medical insurance (see, Miness v. Miness, 229 A.D.2d 520 ;Mulcahy v. Mulcahy, 170 A.D.2d 587 ). This insurance obligation is in addition to, and shall not be deducted from, the maintenance obligation (see, Miness v. Miness, supra).
Given the foregoing, the court's award of $100 per week in maintenance was a provident exercise of discretion (see,O'Sullivan v. O'Sullivan, 247 A.D.2d 597 ).
The plaintiff's remaining contentions are without merit.