Advice please!

Okay girls, so my SO and I have been dating for 2.5 years. We have recently moved a lot further apart from each other (geographically!) as he is an F1 and was allocated a hospital a while away. We see each other about 1 in every 2/3 weekends. Recently I feel like he has got too comfortable and appreciates me less. I love this man, I know what he is usually (or at least used to be) like, so want to spend my life with him. Has anyone else felt like their man doesn't fully appreciate them? How did you fix it? (Not breaking up!!) Thanks a lot ladies 😊