You should have an ideal body that can withstand what athletic sport you are doing. You do not though, have to have a perfect looking body to do sports.
Maslow's Hierarchy of Needs? Then it should be safety since you are being sheltered from harm, making you safe. Physical needs maily involve the basics, like food or water.
A separation is where the couple is still married but aren't together. They could do to couples therapy or surround yourself with people who are in positive realtionships to try to fix it.