How to Let Go of Insecurity in Relationships

I got involved in an ill-advised relationship recently he was evasive and said things like be patient that made me wonder if I was a side chick at first but now I realize that he's unavailable what sent us sideways was that I got insecure and accused him of having a faux relationship interest because we were doing a lot of sexting and not meeting up. Letting go is hard work and it is so easy to get off track, until I was reasons man I was feeling not bad about things and now I feel as if I've lost my ground. If Paula wasn't still blaming herself in some way for why her marriage has broken down or you know saying something like there's