Liar

Things between me and Allen* really seemed to be getting better. He had bought a book about fibromyalgia and was learning a little bit about it and I felt that we were communicating better and that the recent strain in the relationship was fading. Tonight, however, I found out that he is apparently willing to lie about some very insignificant things, which is appalling to me because lying to loved ones is appalling to me. 

I was out all day and wound up not having enough time to drive home to let the dogs out to pee before my evening class, so I called him to ask if he would do that for me and he said 'yes.' So, after class I just called to check back in with him and asked if he had let the dogs out; he said 'yes' to that, too, but when I got home not long ago I remembered that I had locked the door to my parents' FEMA trailer and that only I and my parents have keys, not him, so there's no way he could have let the dogs out. I called him back after I let the dogs out myself and asked him how he let the dogs out and he actually tried to convince me that he did it, but eventually admitted he lied so as not to seem irresponsible. How is that supposed to make me feel?