Saveliev since 1980

Since 1980, Savelyeva has been in actual marital relations with Rodionov. In 1992, she received a house from the village as a gift from her parents. In the same year, Rodionov and Savelyev moved the house to the city and rebuilt it, investing heavily in the purchase of new materials. The house was recorded in the name of Savelyeva.
In 1994, Savelyeva and Rodionov married legally. In 1997, relations between the spouses deteriorated, and Savelyeva went to court with a lawsuit on the division of property. Rodionov said a counter statement about the division of the house. He motivated this demand by the fact that with his own labor and at his own expense he rebuilt the house that Savelyeva received as a gift, and, moreover, repeatedly made repairs.
Solve the problem.