I was afraid something like this would happen. . Let me suggest a different tack for you.
I have over the last several months been trying to elicit from my W some information regarding what she would need to have a sexual relationship with me. Finally the other day, she said, "I like it in the morning." Now the morning is fraught with danger (I'm still the guy who sleeps with the kids) but I decided to take my W's words to heart.
Yesterday morning I shooed the kids out of the room once they woke up (not a trivial task!) I snuggled up to W and we went to sleep for a few minutes. Then I started to snuggle up from behind. She then made some sympathetic vibrations and before long we had a nice, if somewhat short, LM session (that's #3 but who's counting?)
I firmly believe that there are conditions that would cause your W to ML to you, and maybe she doesn't even know what they are. Remember how she was suggestive in Wisc? If dog and baby hadn't gotten in the way, you might have had a very nice squeeze right then and there.
When she says, "You always get aroused when you touch me," you should believe that SHE believes it, even if it isn't true. My W had a similar feeling. Even now, if I kiss her, she asks, "What's wrong with you?" But I get the desired result when it counts. It might be good to be affectionate at time when it is not within the realm of possibility that you could ML in the near future.