Help!

So my husband had issues with watching porn we had a in depth conversation how it’s a deal breaker for me and he promised he would stop that was about 8 months ago I sometimes ask because he lied to my face about it after I asked if he’s been watching porn he said no I swear in our kids life I haven’t so I showed him the picture I took of porn hub on my Bluetooth on my car because his phone connected. He swore on our childrens lives he didn’t watch it and I have proof he did he promised he would t lie to me or watch it again and he admits he watched it recently and lied to my face about it. I’m having a hard time trusting him with anything and I can’t stop crying. He knows how much watching porn bothers me and he knows lying to me is even worse. I am so frustrated and heart broken and just the fact that he can lie to me like that so easily. I don’t trust anything he says now and now I don’t know what to do or think.