Does a girl texting me while she's in the bath mean anything?

A close friend (who I've been getting mixed signals from) and I were texting, and she all on a sudden mentioned she was in the bath, and we had a lengthy conversation about baths and what we both like and do in the bath. It's happened a couple of times before but I never really engaged the topic. Is this an indicator of interest?
Does a girl texting me while she's in the bath mean anything?
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