A woman came to the Prophet and said that her father had married her off against her will. So, Allah’s Messenger allowed her to choose [to either stay with him or to leave him].” (Ahmad, Abu Dawood, Ibn Mājah). Islam does not allow forced marriages.

Love marriage-
Seerah- Shaykh Ibn ‘Uthaymin (may Allah have mercy on him) said: 

“A person may hear that a woman is of good character and virtuous and knowledgeable, so he may want to marry her. Or a woman may hear that a man is of good character and virtuous and knowledgeable and religiously committed, so she may want to marry him. But contact between the two who admire one another in ways that are not Islamically acceptable is the problem, which leads to disastrous consequences. In this case it is not permissible for the man to get in touch with the woman or for the woman to get in touch with the man, and say that he wants to marry her. Rather he should tell her wali (guardian) that he wants to marry her, or she should tell her wali that she wants to marry him, as ‘Umar (may Allah be pleased with him) did when he offered his daughter Hafsah in marriage to Abu Bakr and ‘Uthman (may Allah be pleased with them both). But if the woman contacts the man directly, this is what leads to fitnah (temptation).”

 
q2- What is your opinion about finding the best suitors for marriages through social media such as Facebook, twitter or Instagram? What is the role of Family in the society?

The attempt to find your significant other over the internet