Very early, but already confused!

I met an Aquarius online about 1.5 months ago and we seemed to hit it off pretty well. Within 1.5-2 weeks of our first contact, we met up for a casual lunch. We proceeded to hang out twice again within the week (a movie then drinks and then dinner a few nights later) which resulted in me going to his place and doing the deed both times. Since then, we've texted almost daily (only missed one day), but he hasn't made an effort to hang out again. I casually mentioned this about 1.5 weeks ago and he explained that he's been busy. I acted cool about it and did not talk about emotions; I simply explained that I understood and wasn't trying to be up his butt, but that I could only get to know someone so much over the phone. He said he understood and apologized for it. I thought that pointing this out would mean he might try to squeeze me in somewhere or schedule something, but instead, he's still continually going out with friends on a regular basis.

Evidently, he's a busy dude and my brain knows that. However, there's also a part of me that's concerned that he's not interested and is just really friendly since Aquas are well-known for being great friends. My best friend is an Aqua and seemed to be weirded out that he's not making moves to hang out and I'm still talking to this person even though he clearly isn't making time to see me.

Do I have a direct convo where I make clear that I like him? I don't want to make ultimatums because I know that won't help at all, but I don't know how to determine if I should continue to be patient or if I should move on? In the prior, he would have to admit that he likes me back for me to be patient (which, I'm assuming, based on Aqua stereotypes, might not happen), but I don't want to be so impatient that I'm missing out on something great. The daily texts tell me that he's interested, but there's a part of me that's concerned that he's just being a friend and won't be able to give me the time that I need. I also feel like the texts are his way of slowing things down and getting to know me (again, totally fair), but that's assuming that that's true.

And to be clear, I'm not asking for a lot, but even seeing him once in the almost 4 weeks since we last saw each other would have given me some sort of inkling. Should I calm tf down and be a bit more patient? TIA.