Is she becoming distant or am I overthinking everything?

Anonymous
My girlfriend and I are in our late 20s. We talk every morning our way to work and at night before she goes to sleep (she says she can't go to sleep without hearing my voice). We have been going out 5 months now but I've noticed we hardly text anymore during the day. When we first started to go out, we would text throughout the day and talk on the phone at night for hours. Now (the last month or so), we talk until she falls asleep around 12am (instead of 3/4am like before) and we text occasionally. She's told me that's she's busy at work lately and I know she is. I am too. I'm not sure if it's just the fact I've grown accustomed to her contacting me all the time or not. It just irks me when I send her a message on WhatsApp and she doesn't respond. She will message others back though. She also got annoyed at me last night when I "didn't call her back". I called and it went straight to voicemail (I figured her phone was off/dead/bad reception). She said she was talking to someone and that's why it went to voicemail. She wondered why I didn't call again (if she's busy, I think I should just let her be until she contacts me when she is free). She wants me to start calling her more often so she doesn't feel like she's stalking me by calling me most of the time. She still tells me she loves me many times. I've already met her family like 2 months ago and I'm meeting her mother later this month. Does this sound perfectly normal or is she becoming distant?
Is she becoming distant or am I overthinking everything?
4 Opinion