Line 1: would be his best friend that moved from Montana with him. It comes with details. Basically they both had rough childhoods and met while their families were both living in a motel and became friends, they're super close most people wonder if they're really together because of it. It's up to you whether they also mess around or not.
Line 2: this one is a little more out there but I also need his creepy craigslist roommate who hes become friends with. The roommate does some weird stuff like bring him home 5 single grapes from the store and other odd things that would make someone second glance but to felix thats just how he is and he accepts them.
I could suggests faces if needed and if none of this interests you thats okay too.