I'd forget about this man if I were you.
So after the text exchange two weeks ago, some excitement built up and I was expecting to arrange the date for that weekend. But Friday arrived without any new messages and I decided: 1) drinks with colleagues and 2) not to message again since I had taken enough initiative and told him I would love to meet - ball in his court imo.
Exactly right. You'd told him you wanted to meet up. You were expecting him to follow up. He didn't. At all. He didn't even drop you a line to say sorry been caught up this week, let's do it next week. Nada. Zilch. Zero.
Does this say interested man? I don't think so.
at some point thought of MrSecretAdmirer and why he wasn't there.
Don't lie to us. We see through you. You obsessed about him all day about whether he was there and kept a keen eye out constantly to see if you'd missed him.
He must have received a cosmic message because he messaged me when I got home.
I'm hoping this is tongue in cheek but sorry it sounds like you are still seeking signs this is meant to be. There is no cosmic message.
He told me that his schedule had been hectic and if we could meet sometime this week.
Sounds a bit like he's keeping his options open. If he was interested and polite he'd have let you know earlier.
If you want to, if he follows up go out and see what happens.
I'd probably not bother because you are massively over invested in him and far more keen than he is. This is never a good starting point because he won't change, you'll keep hoping he will and you'll get hurt but not after much anxiety and posting here.
If you do decided to go, you much approach it with an eye of you care far more than he does and lean back. Don't rush to call him after the date or tell him what a great place he picked or how much you love the colour of his eyes or how you are still laughing at his jokes. Wait for him to make the next move and see if he bothers.
My advice: forget this man and start dating others.