Coworker said she missed me, is this flirty?

[Anonymous]

There is a coworker who I am cool and friendly with. I make her laugh sometimes. I haven't seen her since two days ago and she said "__ I miss you", I haven't seen you in awhile! This is the second time she's said this to me.

[Avicenna]

Not flirty

[laly520]

not necessarily

[Rosie1999]

I think so