It's the peace sign man!!!
<3 is love cause it looks like a heart & <2 is the symbol for peace cause its two fingers < these are the fingers & 2 just means two, two fingers - peace sign
Kevin: ok well ill talk to you later babe <2
Eve: how does <2 work?
Eve: silly person
Kevin: because whats less than 2?
Kevin: 1
Kevin: and youre my number 1.