God did not allow believers to make friendship with those  who removed them from their homes and possessed the intention  to harm them!

Verses 1-3 of Chapter 60:

O you who have believed, if you have come out (from your homes and emigrated) in order to fight in My way and to seek My goodwill, then do not make friends with My enemies and your enemies. You show them friendship even though they have refused to believe in the Truth that has come to you, while they drive out the Messenger and you away only because you believe in Allah, your Lord. You send them friendly messages secretly, whereas I know full well whatever you do secretly and whatever you do openly. Whoever from among you does so, has indeed gone astray from the right way. If these people overcome you, they will be enemies to you and will use their hands and their tongues to harm you. They wish that you should turn unbelievers somehow. On the Day of Resurrection neither will your relationships avail you anything nor your children. Allah on that Day shall cause separation between you, and He is Seer of whatever you do.

Verses 8-9 of Chapter 60:

Allah does not forbid you to treat kindly and act equitably towards those who have neither fought you in the matter of religion nor driven you out of your homes. Indeed Allah loves the just. He only forbids you to take for friends those who fought you in the matter of religion, and drove you out of your homes, and cooperated with others in your expulsion. Those who take them for friends are indeed the wrongdoers.