<human>: Can you give me the gist of the text in a nutshell?

He has done this a few times. Last night was kind of a deal breaker for me but I just want to make sure I am not overreating.

Also note I am 4 weeks pregnant with his child. We have been seeing each other only a few months.

Lats night immediately after we had sex, he hopped up, put clothes on and claimed to be going to the gym at 1AM. He finally comes back at 5:45 AM, and I ask him how his workout went. He said he didn't go. He said he went to 2 different gas stations (he works 3rd shift at one of them) and then he sat in a parking lot by himself for a little while. Before he left we weren't particularly having any problems, and we have a good relationship. But this is the 3rd or so time he just leaves me alone. It really bothers me. Is this normal? I have never seen anything like it. He seems very sneaky and it worries me to pieces.
<bot>: Boyfriend leaves me alone in the middle of the night and gives shitty excuses. Do I have a right to be upset?