No it's not biblical for him to treat you that way or put his family as you are his wife & you should be first however if he was an unbeliever since u married him 2 Corinthians 6:14 says we shouldn't be yoked with them in other words united in marriage because it cause problems however if u did marry him all you can do is pray for God to give u wisdom & strength & to restore your marriage bible says what you confess with your mouth in Jesus name will be done you must proclaim life in to your marriage restoration pray for obedience only God can change but you must be patient in God & wait on him dont fall into a temptation right now if the man is interested in you while you are married how does that make him in honest man give yourself respect you need discipline yourself to God wait upon him & no evil will prevail declare your husband for Christ bless you