Divorce is unacceptable in Christianity, unless it is as a result of u faithfulness. In Igboland, we loath divorce as it does not show that one is responsible.
Now considering all these factors, it is an important decision you make with clear mind, i nu go.
Someone, who has shown unrepentant attitude cannot repent now. Forget about that old friend.
I hope you understand spiritual issues. Those who ignore it walk in the flesh and encounter issues for disconnecting from their source. Take it to God in prayer. Or base your decision on physical appearance, and face the outcome.