I'm assuming they never think of me in this context because to them I was the other half of a couple with Rob, and it would somehow be disloyal on their part to introduce me to other men.
They really do not think of me in this context.  
mnli hypothesis: They really do not think of me in this context.   premise: I'm assuming they never think of me in this context because to them I was the other half of a couple with Rob, and it would somehow be disloyal on their part to introduce me to other men.