<human>: Can you condense the text into a few key points?

Hey there,

I've been hooking up with my FWB now for about 5 months. I asked for this arrangement as he was fresh out of a relationship, I was too busy for one and neither of us knew each other all that well. 

Everything was fine for the first 4 months but I really started feeling the connection this past month. I feel it when we're together, in and out of bed, and I think of him often throughout the day. So you know what that means....it's probably time to talk about it.

I am very level-headed and self-aware of my feelings and I know if I continue on with this, I'll only be hurting myself. Wondering. The question I have is, how do I bring it up?  Half of me wants to be like, "I'm into you, can we make this work?" and the other half wants to run for the hills.
<bot>: I caught the feels for my FWB, I want to address the issue as calmly and rationally as possible but not sure how to bring it up.