asking for help and advice

TW: mentions of underage and adult relationship

Heya im doing something i dont think i should be doing on click clock but uhh apparently im dating an 18 year old .... Im in middle school and iv been putting hints like "im going to school" or "i hate being a teenager TwT" and they still call me babe and look i sorta think they are lying about their age of trying to RP with me due to them sending me one of my vids but i dont wanna break up with them bc i dont wanna make them mad or have them threaten to kill themself but their also saying some sexual stuff and i dont wanna call 911 bc i have a fear of police and i dont wanna block them bc i liked it when we were friends if you wanna know what their account is its officialmothermiruko (tik tok) and so im asking you what i can do like should i announce on tt that i prefer platonic relationships (which due to my abrosexuality i AM preferring platonic relationships) or like say something else along those lines? Plz help this is like my first time asking for help in a while so please all of this is genuine

                                                  -Bonez (im trying something new okay)

(yes i know i announced this today i just pubished this bc i know ppl dont check their announcements)

(EDIT!!: THE PERSONS PRONOUNS ARE SHE/THEY)