What do I do?

Not sure who to talk to about this but I feel I need to get it out, me and my gf we have sex but not very often like at all, I’m talking maybe once every 1-2 months and it’s awful, I think it doesn’t bother her as much as it does me, especially bc I’ve quit jerking off, and she recently brought up the question about that and asked me to speak up when I feel I need more bc she said she feels like she takes advantage of my kindness towards that bc I never ask to have sex or anything like that. I always let her bring it up (I’m very respectful towards her on this topic and never want to ask for anything like that) but on the other hand it’s eating at me. And there will be times where I send a text or something when I’m horny hoping for a simmilar response and she will just flat out ignore it. I really do feel like I want more but I just can’t bring myself to ask for that. It just feels like an asshole thing to do. It’s just not in my nature to do that at all. And the very little physicality with my gf wants me to neglect her advances when they come around just to try to give her a taste of how I’ve been. She hardly makes advances and I would like to clarify I’ve never turned down an advancement from her I just really want to. In summary I really don’t know that to do here. I feel like we were much more sexually active a while back. Even just doing stuff like sexting is something I miss greatly. We’re young so I feel like we should be doing stuff like that as well. If anyone has any comments or thoughts or anything, it’s very much appreciated