My Libra partner (male) gets very stressed and out of sorts if I'm not happy for any reason.He's usually happy when I'm happy but I'm a silly b**** and make people laugh a lot, so I won't put that on his sign.
And on the rare occasion that he gets in a bad mood, it's very difficult even for me to pull him out of it. In general he only gets that way when he's really hungry. I tell him I'm going to start carrying crackers and juice in my purse for him for when he gets cranky.
I will add that he has a natural talent for diffusing me most of the time without realizing he did it or even knowing that he just barely avoided a major argument. When it's something I can't let go of it seems if he can't placate me he tries to avoid it and shut it down entirely so yeah, he doesn't like confrontation in that sense.
He has lied to me to avoid jealousy which is so weird to me because of the things he has lied about. He has a close friend that I know for a fact was his girlfriend at one point in high school (and a couple of other friends that he was intimate with well over a decade ago). The thing is, we were in the same circles back then so I know all about it. I've even told him I don't care because I dated my best friend for a short time back then and I know I don't harbor feelings so there's no way it can upset me aside from the fact that he hides it! I think he did it to avoid potential arguments, but I also think he did it because HE is a very jealous person and he just assumes I'd be upset about something that probably upsets him? My point here is he will go to great lengths to avoid any sort of unpleasantness!
And you want to talk about devil's advocate? I know that part of it is not what you were asking about but oh my, no matter what we talk about, he always has to play the other side to the hilt even if he totally agrees with me which annoys the hell out of me sometimes. Especially since I do it to myself before forming on opinion. I feel like I'm repeating everything I said to convince myself in turn to convince him when he doesn't actually need any convincing.