I just want some advice to what to do. My girlfriend has been acting more mature here recently which I don't really mind but it seems like she is less interested in me now well I guess less clingy unlike she use to be. I understand that it would fade because as the relationship gets older the infatuation part fades. But I find it like she is less interested in me. I just don't know how to get use to it. I guess it will come to me with time. This is been my longest relationship I've been in and I don't want to screw it up. What should I do or say when I talk to her about it?

We have been dating for 8 months now.

Well, maybe she is maturing faster or farther than you have/are? Are your education levels similar? Maybe she is wanting to take this to the next level what ever that is for her? I guess it is time to sit her down and have a real heart to heart talk. Nothing about sex, no hugging, no flirting, just a one on one conversation with her and discover who she really is and what she really wants in life. Then you can figure out if you can or cannot provide it for her.

How old are you both, and what specifically makes you think she is less interested?