I’m in a similar situation in terms of co-dependency, neediness and low self esteem. Here is what I’m doing. And actually my situation is way complex, but I do have a person of interest who is pushing me away because I got too suffocating. I’ll also mention he has someone else too.
Mentally I’m focusing on the good times and visualizing us together trying to see it as our end state. Yeah we aren’t there now, but we will be. I’m attempting to let it go and just assume that’s the outcome. Not obsess. Although I do. I’m trying.
In the meantime I’m doing self love meditations, focusing on building my business, I keep doing self love affirmations, I’m working on building my body. Trying to get back to feeling good. My self esteem is at an all time low and I’m not the person he fell in love with. I’m trying to get her back. My assumption is once I do, he won’t be able to resist me and neither will anyone else. Lol. Work on you and don’t worry about him for awhile.