Is it weird I accidentally got a girlfriend?

Well I was bored one day and decided to talk to random people and their was this one person who I thought was fun to talk to

Well it eventually evolved into her flirting then both of us flirting and now it feels like she’s going onto my some day and never let go

So the question is this
Is it weird that after avoiding relationships for 3 years I obliviously got in a relationship?

NOTE: she was not a stranger and we used to be really close but hadn’t talked in a few years
Is it weird I accidentally got a girlfriend?
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