I need help

Kaya
So lately my boyfriend has been pushing himself onto me. Forcing kisses on me, being super clingy and just grabbing on me and its really starting to annoy me. I tried to tell him I dodn't like it and he got super offended and believes im not even attracted to him anymore. I tried to explain to him how grabbing on me and grabbing my face to kiss me annoys me and it bothers me but he won't understand :(