<human>: I've been dating my girlfriend for almost a year, whom I have fallen in love with. She is a great girl in many ways but I have come to realize that she lacks depth (in the nicest way possible). She doesn't have opinions on very many things and isn't able to mentally stimulate me as much as I would like. I've tried to engage her in thoughtful conversations, but she often replies with "ermm I don't know...", which frustrates me to no end. I really value being able to talk about anything and everything, from sports to politics. I guess I am writing this because I am hoping maybe you guys can negate this problem of mine. We are almost compatible in every way except for being on different levels of thinking. I still enjoy my time with her and I am still happy, but I am frankly starting to get bored. This is only my second relationship and I am unsure if this is just how a relationship is (give and take). So I was hoping you guys may counsel me. It hurts to think about it, but I feel more inclined to break up as time goes by.

Condense the text into a few key points
<bot>: I am really compatible with my girlfriend, but she does not mentally stimulate me. I feel like I should break up with her.