school really does make me think

So I need to write a research paper for English. Here is the idea: affairs. This is such a broad topic that I don't know where to start.

There seems to be a rash of people having affairs. Political leaders, movie stars, professional athletes. It's not just those in power or those who are supposed to be 'role models'. It's the man next door or your kids room mom. Affairs are the symptom to a problem and no one seems to be taking notice of this. Everyone seems to be focusing on the affair (or affairs) themselves, not on the problems of why people have affairs.

Are affairs socially acceptable now? Are they acceptable for men? women? Is it the other woman's fault? Is she a harlot praying on susceptible married men? Is it the men's fault for playing with a poor woman's heart?

Do the people having affairs understand how their actions are affecting others? Do they truly think the other is going to leave their spouse? Is it just about sex and could it turn into something else?

These are all questions to be answered on one topic. Where to begin? Do I go about this scientifically? I will start with the definition and move from there. This should be interesting.