So much regret 😔 UPDATE

Okay so basically I had this work placement a couple of months ago over the period of 2 months and there was another student there doing placement too. We got along so well and tbh that was my part of the day I looked forward to most, I felt like I had such a connection with him. Honestly it felt like we were supposed to cross paths and something would come out of it. But me being the shy idiot I am, I never asked him to add me on Facebook or anything so I can't get in contact with him. We go to the same university but different campuses so I can't even run into him there. I just can't help but feel like I've lost someone who would've been extremely important in my life, now all I can think about is him and I honestly don't know what to do. Please help 😔