Jere telling Belly he would not be able to recover if Belly changes her mind again

That is such a manipulative thing to say to Belly and puts so much pressure on her. How can Belly make a truly authentic decision when someone tells her that if she changes her mind, they won't be able to survive? It is fine that he likes her but if he doesn't think he could survive if she God forbid changes her mind, then Jere needs a therapist not a girlfriend and he should not put his mental /physical well being on her. That is not fair to Belly.