Gigi's speaker is finally surrounded by the things they wanted: laughter, kisses, hugs, joy, and real love. Instead of relief, they feel unsettled. The repeated "i should be use to" opens almost like a list of reminders the speaker keeps giving themselves, as if feeling comfortable were a task they're failing at. Because these good things have been missing for so long, they feel foreign now.
The emotion at the center is distrust. The speaker suspects the love is "fake" and that it will vanish "when i least expect it." The poem suggests a person who has been let down before and now braces for loss even in good moments. The chant "i do, i do, i do" sounds almost desperate, and the title's quoted line, "i shouldn't," shows guilt about doubting something good.
The mood is quiet, anxious, and a little sad. The last two lines leave the speaker split between calling themselves paranoid and insisting they might be right, so nothing is settled.