It does look weird but it's okay and doesn't matter too much. The only thing you need to be of is that both monitors are the same resolution wise. I have 3 but one is 1920x1080 while the others are 1680x1050 and it's a nightmare.
I'm glad you told me that, thank you!
No problem, couldn't have you make the same mistake I did.
A 4:3 monitor is often enough as a second monitor so you can look for a cheap one