A Muslim sister was married some time back and just few days later she discovered her husband was having an affair and zina with his elder brother's wife. And when she said anything about this, he used to physically beat her, as well as force her into bed and openly say "I don't like you" and always spoke very abusively.
Some time later he said to her "I give you talaq 3 times" and she returned to her home and elder people from both the families sat and mutually agreed for divorce at girl's residence.
She became pregnant. As they were processing for divorce from court, he left the country and went to Malaysia without notice. After two years, he wants to come back and take her back.
What is the status of their marriage?