turn him down or nah

So tomorrow I have work at 5. There is a guy who recently quit from my work who is a year older than me. We get along really well and talk on snapchat and stuff. He wants to meet up tomorrow (he knows I have a boyfriend and it's nothing flirtatious) 
He is able to meet up at about 2:30. Should I see him or say no? My boyfriend wouldn't be too happy if I went to see a guy. He goes off at me over anything. He goes off at me for talking to a guy without telling him. Thoughts?