How about a fresh perspective, and just a word of warning, I'm in the middle of a thriller, so my mind is there.
Maybe he's in big trouble and doesn't want you involved any further. He needs to repay a debt but doesn't have the resources. So he's going to try something and see if it works. But it's very risky and will put his family, friends and those close to him in danger. Nothing he can do about his family except warn them. But he can shield you, at least.
But you know nothing about this until you see him weeks from now, seemingly alone on the banks of the river. You approach him, and he looks at you aghast knowing what's about to happen. You begin to rail into him, and he screams at you to leave. You ignore him until the first gunshot rings out.
He ducks. You are so surprised at what's happening that you are paralyzed. He runs to you and tackles you as more shots ring out. He sobs as he tries to explain what's happened and how he didn't want you involved. The bullets get closer and closer, one barely missing his left ear.
You scream as you see him draw the gun from his pocket and begin crying as he bolts from your side firing off rounds at the nearby building. You chance looking from your hiding place and see a bullet rip into his shoulder throwing him to the ground. You scream again in anguish and want to run to him, but he shouts "Stay back!"
Two figures emerge from the shadows of the large building with their firearms in plain view. Their words are unintelligible through your tears as you already know the worst.
They lift their guns in his direction until something quickly diverts their attention. They begin firing beyond your position, and you hear gunfire returned. You turn to look behind you and see a number of policemen in SWAT gear swarm the two who have been injured. They are subdued.
You run to your sweetheart who is bleeding profusely from a wound in his shoulder, but he is smiling and laughing and trying to say he's sorry. You tell him to hush as you remove your sweater and place it against the wound in an attempt to staunch the flow.
A paramedic takes you forcefully by your shoulders and moves you aside as they care for him.
You are allowed to ride in the ambulance where he explains the whole situation about his family's debt and their flower shop in the bad part of town that's been their for generations.
He knew something had to be done, and he tried to do the right thing.
Either that or he's dumped you like a coward.
Hero or asshole. If you never see him again then you can decide.