<human>: I recently got back into a relationship with my boyfriend(lets call him Sam) when we broke up for 4 weeks. But when we got back, I still don't love him like before- my feelings for him has long faded. The reason I got back with him was because I had no one there to rely on and I felt very lost. I agreed to try again once more but this relationship is still very idle, I just needed him because I depended on him and also for me to fall back on.

Now, I met this new guy so lets call him Joe. Joe was my ideal kind of guy, and we have mutual feelings for each other. And things starts to get complicated because now I have him to fall back on if I end this current relationship. All of my friends told me this current relationship won't last and I should end it asap. But Sam is a very nice and good guy, I don't want him to feel bad because I want to break up with him again. How should I approach him to end this relationship I no longer long for again?

Can you give me a shortened version of the text?
<bot>: got back from a break up recently because I needed someone but now I met a new guy I am interested in and have no idea how to end this relationship again without him getting hurt.