I have an 86 n/a rx7 with 46k on the engine. Yesterday I was driving home and the hose behind the intake manifold blew, I turned the car off right away and fixed the hose and let it cool down. I started it up and drove about 3 more miles and it started to get hot again so I turned it off again right away. Got the car home and now its turning over but won't start.. I'm fearing that I blew the coolant seals..

it could have flooded try the deflood method if you dont know what it is its pull the 2 egi fuses from the engine bay then wot (wide open throttle) for 10 seconds 3x replace fuses wot until start but as for your over heating problem recheck your radiator and make sure its full check for leaking coolant and feel your rad hoses to make sure they are still soft you might have a tiny leak somewhere that you cant see without it running recheck the hose that you replaced and make sure there isnt a kink in it if its the one im thinking it is

I installed a kill switch to the fuel pump a long time ago. When I try and turn it over coolant bubbles and gargles. I checked the compression wasn't good plus water was on the dip and spark plugs wet.

Yea you blew it might have even cracked the coolant paths