I believe that how you should handle such a subject is with honesty. Don't lie to yourself and don't lie to your partner. Maybe you should even tell them. Now, this is just a broad statement because there could be millions of different strings attached, like maybe you don't want to weigh such a thing down on your partner. And well, sometimes to get up, you have to depend on other people, and the best you can do is help them in return.

I tell him to leave

And he says no you leave

Then I develop this odd

Ability to read his mind

And predict everything

He is about to do

It's ok

You don't have

To be afraid

I'm here because I chose to be

Of that we can both be assured

It's a new world of

Premonitions and fantasies

But open for whatever may come

So fly through like a witch

From a man with a machine gun

I'll be waiting here for you

Depends on if the insecurity is my own or the other person's.

If it is mine, the first thing I do is determine if it is a rational one to have or irrational. If it is irrational, I do whatever I can to overcome it. If I cannot, I am openly honest about it with the other person in the relationship with the tag that, "I know this insecurity is irrational..."

If it is a 'rational' insecurity, I ask myself what options do I have myself to overcome it myself, or should I be trying to overcome it at all? Some insecurities are actually defense mechanisms that are healthy. That help you realize it might be best to redefine the relationship that is causing it.

That said, if the insecurity is the part of the other person. I initially try to be understanding and compassionate, and definitely do not try to patronize them. If theirs is an 'irrational' one, are their changes in my behavior that are worth making (that are easy to make, that doesn't feel like a huge loss by making, and really helps to make the other person feel better) I tend to make it if it is just one thing. If making the change leads to new insecurities, again I tend to start asking if the relationship needs to be redefined.

Now if their insecurities are rational ones, big ticket items that need to be addressed. Are the insecurities regarding parts of me that are not easily changed, ie not necessarily flaws or vices I have but rather natural character traits. In these cases, having honest dialogue that these things are not easily changed. Try to be patient and work through it with them, but know the issue is probably never going to go away by any effort I make.

If it is an insecurity regarding a character flaw or vice, I thank them for the insecurity and use it to help strengthen my resolve to overcome said flaw or vice.

Insecurity on either side of a relationship can fester and poison a relationship, so I've always tried to get in front if them early. Even if it means watching the relationship end because of it.

With whatever issues you've been dealt with in past relationships

Please let me take them

Let me be put down

Let me let you take control of me

Let me forgive your asshole retaliations

Because your past has now become my present

You don't. Insecurity is something you have to get over by yourself. Putting your trust in others is harder when you are not secure in yourself. Forgiveness helps with insecurity. The best way to not get hurt is to not fall in love. But then again. What is life for if you don't take risks?