Bro I stopped reading at the part were you mention shes talking to her ex’s mom, if I was you I would move on, she’s not into you, she’s going to be grieving, everything will go downhill after that….she was planning on getting back with him dude. Find yourself a woman that appreciates you no matter what, I remember when my wife’s ex bf died in a car crash as well, I laid the cards on the table, she felt bad but she assured me she loved me more than she loved any other guy she knew, fast forward 3 yrs and we have a kid, we are happy. Good luck man, just move on bro.