I'm going to get an interview at the same place my friend got an offer from.
Why do you want to get an interview with that company?
My mind is more concentrated on him rather than on my interview. I prefer that we work together in the same office.
I know you like your friend, but taking a job just because the person works in the same office is a bad idea. What if you hate the job?
I'm not really sure what makes me so into him. I like him and I know he's a good person.
That's fine, but that could backfire on you. If you do bad at the job that would reflect on them as well.