Is it a trust issue😕if she is afraid that she'll get heart broken, then that could b z case. If that is her problem u have to b patient wiz her. Tell n prove to her that u r gonna stick wiz her no matter what n stuff. Or try to show her that we all dont like to b brokenhearted. Its common sense of survival n try to calm her mind by not raising this subject or by trying to have some fun n doing stuff together that is healthy. She can try yoga fg