My girlfriend is messaging a guy she met on tinder advice?

Anonymous
I've been dating this girl for 3 months. We met on tinder. She is convinced that im attached to my ex because we broke up a month before her and i met. We had a fight and she dumped me, over a silly lie that i slept with my ex. In the time she went on tinder and met some guy. Theyve never met in person. We got back together the next day and she blocked him. Or so i thought. she's been messaging him. She went to the bathroom and i went theough her messages (wrong i know). She was telling him that shed like to be his friend and so on. She doesn't really know anyone in the country other than me because she's new here. She lied that they stopped talking. He knows that she has a boyfriend. Should i be worried. What should i do
My girlfriend is messaging a guy she met on tinder advice?
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