My girlfriend

I got out of an long 9 years relationship with my kids dad and got with my girlfriend whom makes me more happy than I have ever been. I've never experienced certain things before and being at peace puts my heart at ease. But at the same time, I feel like I'm toxic for her because I have a trust problem. I know one day I will eventually run her off. Even though she makes me happy and I'd do anything for her, I worry and I worry hard. 😟 Especially about her leaving