Follow your gut instinct. I'm really happy that you asked this question. I've seen many threads about people wanting to end their lives because someone cheated on them or doesn't want to be in their life anymore. And I'll never understand it. Yes, I think it's a terrible decision. People will choose not to have a relationship with you anymore because of the silliest, stupidest reasons. They'll want to find themselves. They'll want to relocate. Go somewhere else. Or the most obvious one, they found someone else? It could be one of several reasons, but yeah, they'll want to break up with you. That couldn't possibly be a reason for anyone to want to end their life. I mean, come on. That's just how things are. People will always leave. I mean, you could both love each other tremendously and They could just die/pass on?
So yeah. Long story short. Don't.