Best friend drifting apart

My best friend met a guy about 8 months or so ago. Before that we were extremely close, spent a lot of time together, texted everyday about random stupid things and used to have quite crude conversations about men, sex etc. I'm extremely happy for her, genuinely, with this new guy as she was single for a while before that and messed around by some not so nice guys so I don't begrudge her being in a relationship at all...but I'm surprised at how much she, and our friendship, has changed.

I've seen it happen with other friends but she's such a loyal friend and good person I didn't expect such a drastic change and it's been quite hurtful. I know to a certain extent it's to be expected and a part of life, of course we won't see each other as much when shes with a guy and I understand that. But we barely see each other at all now and if we do it's with her boyfriend or for 1 hour lunch / coffee, or meal on the evening where she shoots off early to see her boyfriend who she sees everyday, making it feel obligatory for her.

When we do see each other, it's still pleasant enough but we don't have the same fun / laughs as we used to, silly conversations etc and when I've tried to talk about maybe guys I'm seeing or made crude jokes like we used to she acts uncomfortable or bored like shes now above it. What annoys me is that I'd had a long term relationship while she was single and I was still the same with her, still saw her a lot and still had time for cheering her up if I got an insecure message or talking to her about guys she'd gone on first dates with (even if it did get tiring sometimes!) I still had time for her. If I text her she sends short, obligatory replies and generally now I don't make much effort as I just feel like Im bothering her.

She seems extremely eager for me to settle down even though I'm happy just dating at the moment and kind of acts like I need to grow up because it's what she's done. Maybe it's because it'd be easier to fit into her life if I was also a couple I don't know.

I'm reluctant to speak to her about it as I will undoubtedly come across as jealous and needy etc even though I am so happy for her I just don't want her to completely change and spend (less) but more quality time with her. One of her other close friends complained about her behaviour earlier on and she told me saying she was annoyed and thought the girl was being jealous so I know she'd think the same of me. I also think even if she did feel bad if I told her any time spent would feel contrived and out of guilt.

I'm actually seeing a guy now and she's taken a bit more interest and meeting up the four of us, but I would like some one-on-one time with her...

Anyone else had this problem? Will it calm down once the honeymoon period settles?

With your writing style, you CAN write to her in such a way that she would not suspect that you are jealous or needy. You have a lighthearted, humorous, gutsy way of telling this story and sharing your feelings; this way seems to be very precise, and in that precise portrayal of your feelings you do not come across as jealous. My only suggestion as to the word choice would be to remove "hurt" and replace it with "frustrated".

I agree, either write a letter, or just straight out tell your friend you miss spending time with her and you would love to hang out once in a while!!!