Her: Thank you i was thinking the same about you 🙃
Her: nothing too serious tbh, wbu?

Honestly same just looking for a fwb (friends with benefits) to have some casual fun this summer
 In this message, he matches her energy in his reply to the same question. He can infer from her answer that she is looking for a hook up and he says he wants something similar in a fwb type situation. 