AIO friendship problems

hi reddit readers i have turned to reddit for advice/ an outsiders view

i had a friend (23F) and myself (21F) we were pregnant at the same time and were super close tell each-other a lot etc, as of recently she has been avoiding me, not replying to my text messages checking in on her, yet she’s been active and posting on social media, she’s recently spontaneously gone on a trip back to her home country, i could tell something was wrong , i had been texting her before this to no response. it was been well over 2 weeks and she’s been messaging another friend of ours, im hurt , i can’t think of anything i might’ve done to upset or cause this, i am a very emotionally available friend and have always done my best to be there for her, ive recently noticed that she’s taken me off her ‘private/spam’ instagram yet our mutual friend is still on this. am i over reacting or reading into this too much? any advice or questions are welcome

thanks for reading!