@NotJustAprettyFace I don't have enough context to be sure that this might help, but I hope at least some part of this does.
Rebuilding Trust in a partner is something I'm currently struggling with myself, so I won't comment on it.
Rather than trying to attract someone who'll actually value, you should be trying to understand what sort of a partner you'd want in a long term relationship (or even if that is your goal at all). After figuring out what sort of a partner you want, please change. This probably sounds unintuitive, stupid and dumb, but hear me out. You need to figure out what sort of a person your partner would want to spend their life with. Then try to become that person.
Hypothetical example: "Playboys" might look for "flirty" women who are not "reserved". If you want to Playboys then being this type of a person helps. If you want to attract caring, gentle, etc type of men, then please try to imagine what qualities would men like these look for in a woman when evaluating a life partner. They'll take their time to evaluate and scout out, what @OutOfRatRace said in their comment perfectly summarises this.
This is not some magical muska, this might just increase your chances at connecting with people you might want to. Also there is also the intimidation factor, attractive people are often very intimidating to approach, you might also want to do some scouting and initiate conversations sometimes on your own(if you don't do this that is). Also looking for partners outside your normal area of activity might help, while also focusing on fixing your trust issues might also be a good move.
Ultimately I have not said anything concrete, you have to understand a lot of things on your own, and I believe that one of the greatest joys in life is to understand yourself and grow as a person from that understanding of yourself.
Take care fellow human!