Dear Soul, All are alone. Every one has the issue..That is not the matter. As you mentioned , the real challenge or worry is what our own self thinks and does about other. If you are honest loyal truthful then need not to worry. If partner is not truthful not loyal not honest then also it is not your problem. His issue in fact. Don't worry, time it self gives solutions to all. Not the incidence, but your reaction counts at last. Practice a silence, just realise what is happening around you and be aware of inside you... observe what is happening in you.. Everything settles its own. Trust yourself and that divine universal energy. God bless you.