My boyfriend and I have been together for 4 years. Living together for 3. We're both 27.

So last year my boyfriend got a new job. We were both really excited about it because it was his dream job, what he'd wanted to do since he was a kid. The first 9 months on this job are really intense though. He's working every night until 9 at least, 7 days a week.

We both knew this would be hard, but I'm a pretty independent person so I thought to myself that I would just act like I was single for awhile and focus on bettering myself. I work a pretty normal 40-50 hour a week, so that leaves me lots of time for other things. I started going to more exercise classes at the gym with friends and really throwing myself into my creative hobbies, which I don't really do when my boyfriend is around.

Boyfriend got the job in September, and for the first couple months, everything was fine. We'd spend time together when we could, but I also felt really great having the time to focus on myself too. I lost some weight and just felt super productive.

Unfortunately, over the past month or so, I think I've gone a little too far into this "single lady" mode. Now during the rare times where we are together, I don't actually want to talk to him. I'm thinking to myself how I wish I was working on my personal projects or at the gym and then hanging with friends. It feels like all he does is complain about how tired he is. And there is a small part of me going, "yeah he's got to be just exhausted." But I don't actually feel anything when he's talking to me, except minor annoyance. And I just feel so awful about not feeling ugh. I don't think my boyfriend has noticed, because I'm always careful to say the "correct" caring girlfriend things. But I feel like I'm a sociopath because the concern is mostly feigned, whereas before I actually did care and want to hear about his day and everything, even if it's all bad stuff.

I don't know what to do. Has anyone ever had a similar experience? Help!