Look pretty and smile and don’t feel

So sometimes I feel not good enough and sometimes I feel like a failure in my relationship because i can’t last long enough or make my partner cum. He makes me feel this way especially when there is someone else is involved he just dose everything and anything for this moment. He moves more for that person then he dose for me. He twinkles like a star especially, something that i don’t seem to do but if he is happy so am I right????????