I apologise in advance if this is in the wrong forum seeing I am new here...

I have been with this girl now for 9 months (dated/slept around for a year and a half). It is obvious that we love each other...she actually has been more affectionate towards me when she normally is not. We have had our ups and downs like any normal relationship...thats normal.

The problem is, the sex has been drying up big time as of late. It has slowly decreased now to just once a week. The few times we do have sex, she gets off/cums...so I don't think it is my technique per say. My problems:

- She used to let me do things that she doesn't like me doing anymore - She doesn't go down on me anymore, she doesn't let me go down on her anymore. I can't play with her clit because "she feels dirty", or with her nipples because "it is too senseitive."

- She just has sex with me to please me or to shut me up...I guess that has something to do with point 1.

- She's become lazy- She works hard, but by the time she's done at work and comes home from the gym she's tired and lazy. She doesn't wanna have sex, doesn't wanna do this or that except watch TV.

- She has no hobbies - Apart from the gym I am basically her most exciting hobby! I have tried to get her into other things (like signing up for rec basketball.

I realise I can only change myself...so here is what I think may be wrong:

- I see her too much- I basically stay over at her house every night. I tried to get her to stay at mine a few times but doesnt bite due to comfort issues..
- I am sexually frustrated - When we don't have sex for a while I get frustrated and take it out on her. She used to have a MASSIVE sex drive but now its just diminishing.
- I always think my way or my ideas are right.

Some ideas I have:
- See her less....obviously.
- I want to get her to take more initiative -- how do I go about this?

Any ideas? Thanks