Im lost

So i met my ex who is also my coworker for the first time after 6 months, he looked so good, he cut his hair and i kinda missed him!

The thing is my best friend who ve seen him for the first time told me he is actually attractive and she asked if i would give her my permission to play with him and revenge me for everything bad he did to me! I told her no what are u talking about!

She now tryanna convince me to reach to him and talk to him, she says she can tell he misses me as much as i do!

He was at the office only for one day he works remotely! Soo that day she would come every 10 mins and tell me he won’t stop eying her and smiling with her and trying to start a conversation! I felt bad she even told me he followed her when she took a break!

The only thing my ex did was unblocking me and putting a note i left for him long time ago when we were dating as a profile pic of his WhatsApp.

I was feeling so bad since and i cried a lot and started to think that i miss him badly, mostly after that best friend of mine told me that i did so many wrong things and i missed up a beautiful relationship, yes i did but he did as well! And when i tried to fix things with him he rejected me long time ago!

I called him with no caller ID just to hear his voice once because i missed him badly but he didn’t answer!