3 some??

[Meliii]

well i wanted to ask for your guys opinion on something.... well me and dis guy named "franco" started going out and we hit it pretty well we hand fun together and enjoyed each others company we both had past relationships that were alot of drama well he has a baby girl and we both said we were not looking for anything serious we both acted like we were bf and gf he opened the door for me would drive 1 1/2 hrs to come see me 3xs a wk  call me everynight after wrk he would call me and we talked for 3 hours everynight ...well things changed completely after a couple of his friends and mine went to the beach... i noticed he started to distance himself from me.. he said he felt a little jealous that i had left with his friend to get some gas for a fire... he said he didnt want to feel that for me because he didnt want to get too atached to me... well i ended up leaving my phone in his car and he had it for a wk he started teasing my about all the guys on my phone and started calling me a player... and i felt that maybe thats why he thought that i wasnt ready for a relationship... well we still talked it wasnt the same. then he asked me since i got along with his friend that we should have a 3some his friend a guy named "mark" and me.....wtf?? i thought.... i felt ashamed when he asked me this... but stupid me one day he picked me up with his friend and we ended up doing that...... he says we should do it again..... what should i say??? should i do it?? i mean its always been my fantasy... and i kind of been torn between doing it again or not!!! help!!!!!