I've known my roommate for about 6 months, and the subject in question for about 3 months. My roommate and I bonded rather quickly, and when I had a space open up in my home, I offered it to him in order to give him some additional opportunities. He has an offer to live rent-free in a place his ex owns, and he is seriously considering taking it at the moment, so he may not be my roommate for much longer. In addition, he has been hanging around with a new friend a lot lately, so even without the new potential love interest in the equation, I've felt a bit of a distance forming between us. He is also a closed person, keeping most people at arms length... asking questions like, "Will you be coming home tonight?" or how he's feeling after a traumatic event tends to invoke irritation in him and you receive no real answer back, other than that he's "fine" and "he'd let me know" if there was some sort of issue. Due to the way his emotions tend to manifest, he has been evaluated for bipolar disease and another similar condition, but the psychologist determined that he doesn't have those.
As for the subject of the spreads... he is young, and that is where some of my apprehension comes from, since, in my experience, a lot of younger people tend to be a bit more fickle about things. As for his personality, he is cheerful, enthusiastic, positive, and energetic, but tends to dwell on the past or worry about the future on occasion, and his lack of life experience occasionally makes him susceptible to making decisions without thinking about the possible consequences that may result.