Used?

so this guy and I have dated before but it was only for a month. It’s been a year now and during that year we have constantly been on and off. I hung out with him today and I gave him blowjobs but I don’t know about my feelings with him. It seems like every time I’m around him, he’s using me for pleasure. We don’t talk at all if we don’t hang out since I have him blocked on social media. I do text him but he never responds. Am I thinking too deep about this or am i actually being used?