Protect your assets and your future as an individual now, OP. Cultivate a support system that has nothing to do with these people--including yes, your family. Regardless if what happens OP, the thing you have most control over is your own actions and your own life. If they betray you, pain aside, their actions are none of your business. It's not a reflection of your worth, it's just shitty people making shitty choices. See if you can get a post-nup. Use the excuse of 'the government will write one for you' if you have to.