Not understanding this situation and what to do?

Me and this guy I’m seeing are exclusive since we don’t like to see multiple people at once. We’re in the same group of friends but never seen each other until this year. We mainly talk a lot through text since he would msg me everyday. We been on about 3 dates so far and the date happen roughly every 2 weeks since his really busy with his work project, he also have uni and after our first date he decided to get a puppy. So now lost his time are going to ward looking after the dog.

He once asked me how often I would like to go out and I would tell him I prefer every week if possible but understand his busy schedule so for now every 2 weeks is fine. He was really happy with the answer and said if it was back then he would of had to go out twice a week, then he would say “you’re not needy at all, that’s good”.I do want to meet in person more but trying to be understanding as well. Since he does text me everyday and video call me at night so I didn’t want to put more pressure on him.

However, I notice our conversation at night started to shorten, it’s like he run out of things to talk about or he would talk to me while doing something else. All he talk about when he msg is about his new pet, it’s the main conversation we have nearly everyday.

My friend told me to go easy on him and don’t get upset that we don’t go on dates often since his busy with work. She told me that he is trying though since he hasn’t been able to see his friends cause of how busy he is but still made time to see me even though it’s only every 2 weeks.

I’m not sure why but I still don’t feel like he is trying. I know his busy but so am I, but I still manage to make time for him and want to see him. I just don’t understand whether his loosing interest so he stop trying or am I overthinking this.