When men turn clingy . . .

[TylerBurden]

Try to talk to his friends about his plans in order to slap some sense into him. You shouldn't sacrifice your personal happiness in order for him to be happy

[BiggieBalls]

Talk to him. Clear the air and if ever he's still like that, go get a psychologist for him to talk to.

[DirtMcGirth]

Only one thing to do, Be firm in letting him go. That's the only possible solution in this.