I know this title sounds pretty bad but hear me out. We're both 19.

I have a pretty high sex drive and I'm up for sex pretty much anytime of the day (obviously there are some times I don't feel it).

It seemed like my girlfriend was pretty similar at the start of the relationship, but now (7 months later), her sex drive is a whole lot lower. I understand that it's not like she can change it or anything, but it's frustrating for me when we go 3-4 days without having sex and she seems okay with it, but I'm itching to do it. The constant rejection is also super frustrating and I basically resort to masturbating when she leaves. She's aware of the 'problem' but like I said she can't change much and I'm obviously not going to force her to do it if she doesn't want. 

I feel like we're pretty incompatible in this sense and it's getting to a point where I honestly can't deal with it. Is this an asshole-ish reason to break up with someone though?  

&amp;#x200B;