What do I do when my boyfriend told me he's lost interest?

For the past week, my boyfriend was acting distant towards me on the phone, and giving me attitude, and I sensed that something was up with him, because for the 8 months that we have been together, he's been so sweet with me on the phone...always in a good mood. This hasn't been the case recently.

Because I was aware of this, yet apprehensive to even say anything (I wanted to avoid a fight), I acted distant in return and never really said much when talking. Today, I finally broke down and asked him what was up. He broke down and told me that I he "is losing interest in me". Hearing this broke my heart. Deep down inside I felt as if this was the case, but I didn't want to believe it. We fought, and sort of resolved things, but down inside I wanted to leave him...but I also want to be improve things between us...would it be possible to continue a relationship with a guy who's says he's losing interest in me or is there hope in saving the relationship? Thank you so much and I appreciate you taking the time to read it!
What do I do when my boyfriend told me he's lost interest?
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