People calling you attractive and not getting much attention on dating sites don’t correlate with one another.
Your issues with getting attention on dating sites has a lot more to do with how appealing your dating profile is than how attractive you are or anything else.
What you are saying on your dating profile isn’t intriguing the people that find you.
When a guy is still using dating sites after having found a woman in real life that he is interested in, he is most likely not that interested in the woman.
In other words, there may be facets of her life and personality that he likes, but he may still believe that there is something missing.
By still using dating sites, he is indicating that he is still searching.