Friends with benefits

after sex he said I love you when I was leaving what does this mean? I never asked him if he meant it and we never talk about our feelings unless we're jealous of who we hang with , and after he said I love you he told me he couldn't do this anymore and we stopped talking for 2 weeks and I recently saw him and we were back on and he asked if i missed him but we both didn't answer each other I'm really confused by our "relationship" could he be catching feelings? but don't let me forget to add there's always other females