I fancy my DBIL.
I am so in love with my DH, no doubt about that. We have 1 DC, our amazing 5 year old son 
DH is in the army, we don't see much of him, esp the past year. I live 260 miles away from family. While DH has been away, ive visited family A LOT. When myself and DS visit, we stay at MIL house, my SIL and her husband (my BIL) live there also, with their beautiful 11 month old. So when we visit, we live with MIL, SIL, BIL & DN.
BIL and I get on really well, we have the exact same interests, we're the same age and DH and I have been friends with him long before he got with my SIL. I adore my SIL. I have noticed within the last year, maybe even slightly longer that I have developed a little crush on BIL. I feel awful. We get on so well, we talk a lot, we're silly with each other (not in a physical way) -- I would never ever EVER act on these feelings, not even hint or even slightly acknowledge it while at their home, but I can feel it and I feel so guilty. Its something I would always keep to myself, and myself only - however I just feel like the worse person, ever.

I guess my only reason for writing it on here is to get it off of my chest finally and knowing there isn't any consequences for doing so.
Also, if anyone has any advice on how you I could maybe snap out of this, I'd. appreciate it. Please don't rip me to shreads, I can guarantee I punish myself over this enough. 
Thanks ladies.