<human>: Throwaway account. I'll try to keep it short.

 I recently was offered a 1 month construction contract in another country with a great payout, so I decided to make the trip. My GF was scheduled to have an minorly invasive operation done while I was away, and leading up to that our communication was great. Normal I love you's, texts, and emails. Calling was tough because of time difference and exorbitant cost, but I left messages when I could. 

After her operation, however, our communication has dwindled. She hasn't sent me more than 5 text messages over the last week, though I've tried to initiate conversation. Any messages I do send get the little "Read" mark next to them, but she doesn't reply for hours; when she does, she also doesn't reciprocate my "I love you" or "I miss you." 

Additionally, we used to send each other a daily email, but that's ground to a halt as well. I know she's not cheating, and I want to attribute the lack of communication and love to the drugs she's had to take combined with the stress of her job. Still, I'm confused as to how I should initiate the conversation about the lack of communication. I go home in a few days, and I don't want to make a fuss before I have a chance to talk to her face-to-face. 

Any suggestions or advice would be welcome. Thank you all.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: I go away for trip, GF has operation, seems like different person when communicating; I'm upset by the lack of response and love.