Elise
You feel guilty because you knew when you got with him that he was married. You love him and he has enough love for you and his wife, he never made you feel like you're lacking. I think it feels wrong to you because you know that it's something he wouldn't be okay with. Bucky wouldn't be okay with me flirting with another man either.
And yes, it really is. I'm not joking. [She pulls up a sext he sent her] I don't know where he hides it.