I can't even begin to fathom my own emotions, on one hand I love my wife very much but on the other hand I just can't see us being together much longer mainly due to such a senseless reason.We never have sex anymore, it's such a base pretty reason to break up but for me sex is an important factor in a relationship as it makes me feel secure and loved but for my wife she has no drive for it at all, the only reason we do end up having sex is when we fool around and she wants to be tied up, during such times we get carried away and we end up having sex but afterwards she always goes really quiet and moody with me.When I ask her why she got moody with me she only ever says we weren't supposed to have sex, an that I took advantage of her being tied up which I will not deny as we both know that I can get carried away when we have fun especially if she is tied up.Now the real problem is she says she doesnt mind me getting carried away but she never actually wants to have sex at all. 9 times out of 10 the only reason we have sex is cause I initiate it (again usually only when she's tied up) but any other time even if I ask her if it's ok to have sex she always says no.She's done this since the start of our relationship 8 years ago, no matter how we communicate it she never agrees to have sex, she never initiates intimacy either and I'm always left being the one who actually tried to be intimate with each other.I feel like she doesnt try as she hope's that eventually I'll give up and just lose the will to have sex but it's a big part of who I am and I dont want to just throw that part away but I also can't just walk away from our relationship as I do love her more than anything else.I just hate feeling so confused by this as its tearing us apart slowly and its tearing me apart from the inside quickly, I've gotten to the point I would honestly agree to have sex with a random stranger just to curb my drive but I dont want to hurt my wife either.Well thanks for your time and I hope you all have a good evening