<human>: Can you give me the gist of the text in a nutshell?

Hello Reddit. Have never been on this sub before but recently has been brought to my attention. Been going with this girl for well over 3 years and she's perfect! We've been to high school prom together, graduating college, to even when I graduated the police academy. (cops are supposed to be tough I know don't judge me.) Shes been by my side for everything is what I'm trying to get at. 

However in the past months I feel like our relationship hasn't gone anywhere. We used to talk and text about everything and now it's the same pointless shit and same boring replies. The dates have been boring too, doing the same pointless shit I.e. Going to dinner, coming home, watch tv. And the same has sucked.. I know there's more to having sex in a relationship but it just sucks cause when we get intimate she just teases and that'll be it. I still love the girl and I have no intentions on cheating but why do I feel like this? I never noticed this in the beginning but after 3 years I've noticed that her perfect imperfections have become gradually more annoying. I like going to the bars with my mates, working out with them, and she gets mad when I make plans with them. I used to not get annoyed but after time and time of her getting annoyed with me for no reason sucks. 

Being together for this long and getting to know her family, vice versa, just makes it hard for me. I've been thinking about it for a while now but I want to break up with her but idk if that's the right thing to do? How would I go about doing it? I just need some help because I like the thought of independence but at the same time I still love her and would feel bad for wasting her time after all these years. I feel like I'm lying to her. Thanks for listening to my sob story
<bot>: I think I still love this girl but I don't think our relationship is going anywhere. Need advice on breaking up after 3 years.