I need advice

There is a guy that I work with that I kind of fell for. We started talking and talked almost everyday for about 3 months, I am pretty sure he has some kind of feelings for me as well because everytime I look his way, I catch him staring at me. I think he got scared because I found out that someone put a note in his work locker that said I am in love with him. I don't know who put it there and I never will. Not long after that, my grandfather passed away so I kind of pulled back, but now that I am getting over that loss, I want to get back to the way we were. I have been going back and forth in my mind and can't decide if I should start talking to him again. I am in need of some serious advice and would love anything that I can get.