Guy Looking for Experienced Woman to Help Fix Bedroom Issues wi, Naas – 27

Just looking for advice from a female to help me with my GF. Been dating 6+ years and engaged 2. When we started dating we were going at it every chance we could get and both explained how we both have high sex drives. But ever year we seem to have less and less sex. When I ask if it something about me she she always says no. And when I ask if something happened her or if she’s alright she always said everything is grand really confidently. Like I make sure she cums every time and fulfill all her requests every time. I just want to get the spark back and I don’t know what to do. I have tired talking to he and she says I always ask when she’s tired or not in the mood and I try getting her in the mood like I did when we started dating doing the things she loves and would make her crazy to get on me but doesn’t work now. So if anyone can give me advice I would really appreciate it.