I have wrote a post on here about 2 weeks ago with the same issue.
My OH is working 5am to 1pm tomoz and im at work 4pm to 8pm ,so i suggested meeting up after he fnishes work....he came up with the excuse that he doesnt want to stay in his work gear and he wont swop the gym time for me again.Told him how it has made me feel and he has turned it around on me calling me a bad gf 
So is it me and my implant or his behaviour?