Is there a reason guys will get with a conventionally unattractive woman?

I'm partly asking for myself too. I'm a big girl, cute face, but big so. unattractive conventionally. (At least I'm honest with myself) but I pulled some good looking dudes in the past BUT they had toxic and manipulative streaks. They were good in the beginning but then started to pull the works. I feel like I'm a target for certain men. I'm 30 lbs down, so I'm hoping it increases the chances of landing a good guy. Is there a reason a guy would go from a thin and pretty chick to an unattractive one? Need to know what I'm up against because that's been the pattern.
Is there a reason guys will get with a conventionally unattractive woman?
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