My partner is in the military and I barely get to talk to them. After we started sleeping together it got a lot harder to get in contact with them. 

The other day I called at around 6 in the morning and a lady answered. She was cutting in and out but I heard something along the lines of "Who do you want to speak to?" "(Blank) doesn't want to talk to (me)" and hung up.

My partner says he highly doubts she gave me any attitude and maybe the phone hung up by accident because when she came to him she said there was someone on the phone for him

Is it possible that this is all in my head? Or am I being lied to?