FWB transition to Real Relationship

I recently reconnected with an old FWB that I haven’t seen in over 3.5 years. Our story goes back to about 7 years ago where we met and developed a FWB relationship that lasted over 3 years. We would see each other almost weekly until I broke it off because I met someone.
In the beginning of 2020 my FWB reached out to me via text asking how I was. I responded and we chatted via text for a bit and he asked me to meet up with him (we are both single now). I was hesitant because I felt this was kind of starting where we left off. So I held off meeting for a few months despite him continuing to ask.
We met around 3 weeks ago for coffee and we talked about our past relationships including our FWB relationship. He asked me how I felt about us seeing each other again. I told him I was not interested in a FWB relationship any more. He stated this time we could try for a real relationship. At that point I didn’t specifically ask does that mean exclusivity or BF/GF? I didn’t think it was appropriate but rather let things happen organically.
Since that meetup we met up once more at his place watching movies and hanging out (I did not spend the night).
He asked me out again the following week…however the day was scheduled for Friday but no time was scheduled (he works till 6 on Fridays). When the day came he asked me at 3pm if I wanted to come by his or him by me. I stated I would come by him. By 7pm I hadn’t heard anything so I asked him if he was still working and if we should do it another day? I didn’t want it to be a late night hangout I wanted to go on an actual date which we have never done.
He responded back saying he was looking at a few places (he’s home shopping) but if another day worked better to let him know. I ended up canceling and he told me to let him know my schedule for the following week. The next day Saturday I responded in the evening and told him Sunday or Monday would work since I was going away the end of this week. I also said I know he has his kids on Sunday so wasn’t sure if that was an option for him. He actually asked me if I was busy that Saturday night because he was at a Pub after work. I asked him if he was asking me to join him and he said of course I could. I said I was with my daughter.
On Sunday he texted me but I am not sure if I misunderstood the text..it came across as he would be with his kids but would probably be available later on around 8. I responded back by saying that if we didn’t meet up today (Sunday) it was fine no worries. He never responded to my last message. We don’t text on a daily basis we usually text to meet up.
I just don’t know if I came off as flaky or too unavailable by canceling twice on those last few days?
My GF stated I should reach out if I don’t hear from him by Wed. but I don’t feel I should, I still feel he should pursue. I do like him and I want to get to know him on a different level but even when we were FWB I had a hard time reading him. He also stated during our texts before we met that he felt bad for taking me for granted during our FWB relationship. Both he and I were in long term relationships until the beginning of 2020 mine was 3 years his was 2.
How do I turn a FWB “outlook” on my part into a relationship? I feel I shouldn’t start making demands but I don’t want to be a booty call either.