I'm going to do everything in my might to keep my partner suicidal.
Why would you want to keep your partner suicidal?
I can't let him kill himself but I don't care that he is suicidal and it makes him rely on me more.
If you know someone who is suicidal you should help them. Thus it is bad not to get help for your partner who is suicidal.
I love him, he can do whatever he wants as long as he supports me too.
If you love them you'll try to get them help. Suicidal thoughts are dangerous and someone might want help without being able to say so. As your partner you owe them a chance by trying to help them.