If we are obsessed with trying to figure out what someone else thinks about us, we are obsessed with something we cannot control. Obsessions with things we cannot control cause stress which can contribute to a relapse. Sobriety teaches us to go about our business of practicing good recovery principles "in all our affairs." Although people usually aren't as concerned about us as we might believe, if they are jealous, hateful, loving, or whatever they may feel about us, that is their business and not ours. What a relief it is to let go of others' opinions about us!
We cannot control others and we cannot control what others think of us. Things that we can't control are none of our business. If necessary, create a healthy boundary if someone is bothering you. But don't waste time and energy stressing over what they think of you.