Thank you for sharing. What you are dealing with sounds really upsetting, it can really hurt when things cause stress in our friendships. It was really brave of you to open up to your friend and be honest about your concerns. It sounds like you really care for your friend and only want the best for them - which makes you a really great friend!
What does your friend think about the concerns you have for them? What was it like for you to hear their response to your concerns? Did you feel better after getting things off your chest?