<human>: Give me a shortened version of the text

I'm considering ending things with my girlfriend, but I can't bring myself to do it. Here is why I'm considering to end things:

Lately (the last couple of months) we don't talk as much as we used to. We only have sex a few times a month. I feel like I've lost interest in her. She says she loves me everyday and it feels like I'm lying to her when I say 'I love you too'. I know that in the long run we don't want the same things in life. 

I still care for her a lot and I think I love her which makes the decision very hard for me. I can't help but feeling guilty for not being honest about my doubts about our relationship.

I can't make the final decision to end things because every time I try to actually have the talk or just think about it I begin questioning if I'm doing the right thing. I've had these doubts for several months now and I feel bad for "wasting her time" until I make up my mind.

Every time I think about breaking up I remember how much I care for her and how cute and lovely she is. So I guess my question is how do I know if it's really the time to break up when I still have feelings for her? 

I haven't said anything to her about my doubts as I want to be sure about my decision, so I wont hurt her needlessly. I hope some of you can give me some advise or thought on what I should do.
<bot>: I think it's time to end things with my gf, but I still have feelings for her and don't know what to do.