A friend of my best friend and her boyfriend is giving me mixed signals. Sometimes he gives me attention and flirts with me mostly when were alone but when we are with my best friend and her boyfriend he always acts normal like friends. We have been texting but lately he hasn’t replied. What to do

Guy here. The only flirting with you in private is better than flirting with you in front of other people in my opinion. The girls I flirt with in private are the girls I really like, the girls i flirt with in front of other people are just girls I consider friends and I'm just having fun.

The not texting back doesn't seem good in my opinion. If I really like a girl I will text back for sure. If he is not texting you back or trying to set dates then I think you should forget about him and move on.