My marriage may have failed because of this issue, so I think, perhaps, I should give a couple of thoughts on the matter.
The S/N difference, I feel, is more of a problem for the N (especially an NF), because they are searching for a 'soulmate'--Someone they can connect with on a deeper level, and someone who matches them, heart and soul. An S will not be able to understand this need, and this connection will not happen. All types have a bit of abstract in them, so it may appear in a Sensor partner from time to time, but eventually the S will grow tired of reaching past the tangible, and the N will feel as though the S doesn't care. The S usually does not have an issue with the N relationship, because day-to-day life is satisfying for them. They will need nothing more.
Expecting an S to have the desire to connect on a theoretical level can drive an iNtuitive insane, and make the Sensor feel, well, attacked, I guess. I'm not sure if this would have helped or not, but if I had realized my partner was not interested in speaking in abstracts (and was also aware that was indeed what I was trying to do), it may have worked out. Even with that understanding, however, that much needed connection for the N would never materialize. Others on here have said that the need for abstract connection may be fulfilled through N type friends outside the relationship, so perhaps there is hope for an N-S pairing if the N doesn't expect to find that connection with their own partner.
psyche--It may appear to you that there is a communication breakdown in your relationship due to the intriguing thoughts from the Sensors here, but these Sensors are communicating something they, individually, have found to be real and relevant. If psychology theory is where you can connect, maybe you can see if your partner is interested. Just a thought.