Partial bicep tear or strain... will it heal itself?

I pulled a muscle that connects to my bicep and forearm, i felt a sharp pain going through my forearm and almost like a pulling stinging sensation. my arm turned red. This was all from deadlifting. 3 weeks later I was flexing my arm and I felt a huge pop of pain around my distal tendon. My bicep has shortened a bit and now some of my rotator cuff muscle has been throbbing as well as my upper bicep. if I have a partial tear will the bicep lengthen out again and heal itself? I want the muscle fibers to heal and fuse back together. cant muscle fibers fuse back together? I need all my arm strength for football season. I have not worked out my arms in like 2 weeks since it happened but I need to workout my upper body somehow. every upper body excersise I do requires my bicep!! I cant afford to have anything torn again. the thing is a symptom of a torn bicep is having a whole lot of bruising in that area, and the area to be purple or numb. I havent had any bruising at all, only a red glow on my skin after the incidents happened, the muscle just feels different, when I am flexing it , the muscle feels as if it has receded up higher toward my shoulder. It is noticably different, I notice when I am flexing the muscle has receded a bit especially during supination. I have had my arm relaxed and I mage the arm. While doing so It feels like there is a little net like tendon around where it popped that feels like the fascia, can a fascia tear? I know these are alot of questions but answering any of them would be great.I want a full bicep!The muscle is sore sometimes like an injury type sore not workout type sore