Am I desperate in this friendship

I have friend who I have been friends with since we were kids but drifted apart as we grew older. We randomly started seeing each other again as we became adults.

I was hoping to build a stronger friendship as they are the only friend I have now since I lost contact with all my friends since graduating high school and university and feel lonely.

I always try to reach out to meet up at least twice a month. The advantage is our workplaces are close to each other so I always meet up with them for lunch. I genuinely enjoy hanging out with them. They do say no occasionally which leaves me feeling unwanted and leads to social anxiety to spike. Am I reaching out too much and crossing boundaries in this friendship?