Mismatched libido

Hi. My girlfriend and I have been together for a couple months and I want to sleep with her all the time. She doesn’t want to have sex as frequently. Today I felt like she was going out of her way to reject my advances without having to say anything. I felt really confused and rejected after taking the hint. I’m wondering if it’s a good idea to keep seeing each other because if we’re having an issue like this so early on, what does that mean for the future? but everything else is so perfect and I’ve never felt this way before. When we talk about it, she says she does want to have sex maybe once a week. I would obviously prefer more than that. Do you have any advice?