Is this considered emotional abuse or am I just overreacting?

I've heard the term "emotional abuse" used for situations when someone is using emotions to withhold another person in a relationship. I've been thinking about breaking up with my boyfriend for a while because I just don't feel in love anymore, no matter how many times I try to feel what I used to feel. It just feels like we are best friends, and nothing more. It's uncomfortable to hold hands.

But anyways, I'm hesitant to end things because in the past he's said that if I ever broke up with him he'd harm himself and stuff. Is this considered emotional abuse or am I just being over dramatic?

tl;dr: I want to end things with my boyfriend but he threatened to hurt himself if I did. Is this emotional abuse?