Hi,
I am aware I sound like a teenager wondering if he likes me, but this is someone I work with so I don't want to make things awkward if there's nothing there 
There's kind of some mixed signals I think. We talk and get along well when I see him at work. He followed me on social media and said in his first message that he was glad to have found me on there. When he messages me he calls me love (as in 'thanks love', not a romantic love way), but that's the way he talks in person so I'm not reading anything into that. He keeps conversations going, asking questions and things but he doesn't initiate conversation by sending me messages first.
I think the not initiating messages probably means he's not interested? He works a different shift to me so I only see him if I'm in late/he's in early so I can't really casually ask him out for a drink after work or anything either.
Any thoughts please?