Why did this happen with my boyfriend? Do you believe he really did have work?

I've known this guy for quite some months now. Everything seems to be going great between us. We have good connection, can be at ease around each other, talk and laugh about everything and have fun. I believe we are quite serious about each other as he has asked me before what my goals are for the future, and his. He has included me in those goals and said what he wants. We've had the serious talk, about children, our views on marriage and the list goes on. We see each other at least 3 times a week and usually the weekend, and recently he said he wants to see me even more. He will text me a lot during the day and night and will call me as well. Usually if I last minute ask him to do something, he will come and join. He works a lot and I still don't exactly understand what he does, but he is basically a banker for a real estate company and has to travel a lot. He's currently been dealing with some deals in other countries with a lot of money. Hundreds of thousands, almost millions. According to him. So often, when we're together, he is on his phone with his bosses, who I know have male voices because I can hear it. He seems very serious about me and the relationship but these are some random issues I have, which I have not addressed yet to him. We've been dating for a little over 2 months now.


-At first, he would take me to places that were at least 20 minutes drive away, and takes me to the movies a lot. I sort of questioned this, but he would say that he loves the place. Lately he's been taking me to places that are closer, and much busier. -When we're out and having dinner, he will usually look around the room a lot(not sure if this is a sign of a controlling man or..)
-He's 10 years older than me. -He's told me he's apparently not married, nor have had children before.
-Apparently lives with a sibling. Haven't met a friend/family member yet. This also could be due the fact we are of different cultures and both sort of nervous.
-When we spoke about our views on sex, he at one point said that he dislikes to have sex with a woman he's not emotionally/attracted to, because it's such a drain on him.
-The other night was the first time we slept together and he booked a hotel for me, because I brought up the fact I didn't want to interfere with his sister and he agreed. I started to get my period straight after we slept together and he was really concerned for me, made sure we went to the shops and got everything. Really caring about it all. Then, when we went out for dinner.. He was talking about how previous women he has been with doesn't understand his work, and how he constantly has to travel. So I told him how I felt, and that I would be respectful of it, just like how I would hope he would do the same for my work. After we got back to the hotel, he got a call from his boss(which I could hear was a male voice) and said he had to be in another country(driving distance) by the morning so he ended up dropping me home. He brought me home around 11ish because he had to be up early in the morning to drive. I thought it was slightly odd. Besides that, we had a good night, and our communication is great. He told me that he is so glad we met, complimented me, etc.