They are informal spoken language. In speech 「って」 is often used in place of formal particles as 「は」「と」「も」 「って言ったって」 can be substituted with 「と言っても」 「と言っても」 is a phrase meaning "although ～ say/said that ～" or "even though ～ say/said that" And 「いいのになって」 would be 「いいのになと」 and the latter part of the sentence like 「思う」 is omitted. Also in　「食べちゃうから」, the latter part is omitted.　「から」 is a conjunction meaning "because" or "so" and maybe 「大丈夫」「心配しないで」 are omitted. (it depends on the context.)