nonetheless, although, be that as it may

in other words; what I (you, etc.) mean is

to startle; to surprise; to astonish

物々交換: barter

barter; bartering

unstable: anxious because of the inability to get what one wants

instability: the state of anxiety caused by the inability to get what one wants

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)