Ever since I lost 70 pounds people treat me completely different ?!

I used to be 224 I lost 70 pounds and am now at 154 ... and before I lost the weight nobody would talk to me no guys would be interested in me and now that I’ve lost the weight guys I liked before who didn’t like me back now want to be with me and now people who wouldn’t speak to me before are trying to befriend me what do I do I can’t believe people are so shallow ! Should I give them the cold shoulder like they did me ? Or should I befriend these people and go out with these guys ...