Oh yes, sorry cazzz.
It's not specifically a gay question. It's a relationship question. The fact that you are two men doesn't make much difference.
Don't a lot of couples go through patches like this? And it's probably not uncommon to be concerned that the other person might be putting up a bit of a barrier because he (or she) is seeing someone else.
However, there doesn't seem to be anything specific to suggest that that is the case.
Dave, is there any way you can set aside a couple of days, with no work or anything, to make time for yourselves?
J x