[soto 95 gsx]

Its a 95 gsx... If you roll start the car it will run and drive fine but by starting with the key it wont start it will turn over but never start. It has a optima battery which is fully charged, new battery cables and a new starter which we have only attempt to try and start it twice with it.
but heres the interesting part awhile ago this summer the car stopped starting when you turned the key nothing would happen couldnt figure out why put a new starter relay in and nothing happened still. but by bridging 2 of the wires without the starter relay in the car will start but now it will attempt to start just wont unless you roll start it.

I know thats a two part question but maybe help with either one will help me figure it out.