feeling unsure after 8 weeks

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so I've been seeing this guy for about 7-8 weeks now. we haven't had sex yet but I've slept at his a few times and we've done some stuff.

in the initial 4 weeks I feel like I was seeing him about 3 times a week. He was travelling a lot, but I've always felt like I'm still seeing him enough because he always made an effort to see me before he would leave, and after he would come back and he was gone for 3-4 days a week, which still made me feel like it's enough time for me to see him the remainder of the week.

we both left for Christmas for 2 weeks and when we came back I feel like things started to slow down a bit. For New Year's <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> he invited me and all my friends to his house for a house party which was really nice and super fun but the next day he was very hangover and didn't wake up properly until 7 pm. I had woken up at like 12 and was just waiting in bed next to him, but eventually I left at like 3 pm when I saw he is unwell and needs sleep. I've seen him since on a really nice date sincd, then he came to my house last Sunday briefly as I did a gathering with my friends and we went iceskating on Thursday.

However, I feel like I saw him more when he was travelling and made more of an effort then than now when we are both consistently in the same city.

Equally he has been really really busy with work sometimes sleeping at 4 am even 6 am working, so I don't wanna go crazy but also it's the weekend now and I find it really unsettling that he hasn't invited me out for Saturday for example. Since NYE I've also slept at his house only once. I invited him over since then once but he couldn't come because of work. We live in a big city but luckily we are 10' minutes from each other on a cab ride.

What should I do, I really crave just spending a night with him and falling asleep together, should I give him the benefit of the doubt bc of his work schedule/maybe also wanting to see his friends since he's been caught up with work or should I tell him? I really want to become his girlfriend and I want him to know that I would be supportive of a busy work schedule and not act crazy, but equally we are so early on I feel like I should see him more.

Also, in terms of our communication, we talk everyday via messages (we don't call), we always say good morning, and good night most nights. I really like him and I feel like not seeing him enough is holding me from wanting to be more intimate with him, I really want us to advance to that stage but I feel like I need to see more effort.