Advice on guys behavior?

MichiganGirl
Hey! So I'm just hoping for some advice or opinions on a situation with a coworker of mine. So this guy that I work with I've been interested in and I finally had the courage to go up to him and ask if I could give him my phone number, he seemed really interested and put my number in his phone and even texted me right there so I would have his number as well, so then before walking away I said we should grab drinks sometime and he said for sure. This was on a Friday so on Monday I texted him saying what days I had off that week and asked if he wanted to get a drink, he replied saying he did want to get a drink with me but he was busy that week, I said no worries we can see how next week looks and I haven't heard anything since which has almost been a whole week now. Of course I've seen him at work and he's nice and we chat but I'm not sure if I should text him again since so far I've been the one initiating everything or if maybe he'll follow up later or if he's just not interested, which I guess is confusing because he said twice that he was interested in going out for drinks.
Advice on guys behavior?
4 Opinion