<human>: Alright, so first i'll give so info to paint a fuller picture.  

<!--Me [23/M] and my gf [24/F] are together for ~3yrs. Met in university, moved in together after a year. 
All is fine, no trust issues or anything, but over the last year or so i started feeling like shes not the person i want to raise my kids with (just to clarify we dont have kids yet and arent planning).

She isn't a bad person, she's caring, tidy, etc.
The problem is that I dont feel that we have anything in common anymore, whatever i like, she hates and same for me, whatever she considers fun, I see as "not too exciting", so we end up either doing something together and feeling uncomfortable, or not spending time together.

Also, her actions drive me nuts, shes not the brightest so discussing anything or talking about something most of the time leads to me facepalming alot (i'd like to believe thats just me being a narcisistic asshole, but in a group of people she gets the same reaction, everyone facepalming)-->

So from this i raise three questions: 

1. Is this just a phase i'm going through? (been tanking through it for the last year)

2. Should i break up with her?

3. How so i break up causing the least ammount of pain? <!--Looking for advice from choleric females here --> (should i distance myself from her or just outright tell her its not working?)

Can you give me the gist of the text in a nutshell?
<bot>: I feel like its not working between us anymore, should i break up (and how), or is this just a phase?