Two months ago I started seeing a girl. She's on her last semester of college and has been really busy, so we haven't seen each other more than once a week or two. She asked me on our first date, half-jokingly, if we were boyfriend and girlfriend. I laughed and smiled and said "let's see, but I'd like to see you again." Since then, she hasn't brought up the question again. She still wants to see me, but we only communicate maybe once or twice a week to try to set up dates. Often, it's difficult on her end to see me due to her workload.

Being a little impatient (I'm studying in another country for a semester) and wanting to finally bust a dry spell that's lasted since my last breakup, I set up a tinder account and within a week was setting up dates with promising matches. I already met up with one, and we had sex.

Again, I had made it clear the first and only time girl #1 asked that I wasn't going to say we're in a relationship yet. And she hasn't asked since, nor has she seemed to be particularly pushy or clingy. Still, I'm not sure how she'd feel about me seeing someone else since we have seen each other again a few times and perhaps she assumed that was me saying "ok" to a relationship without actually saying it.

I've never been in a situation like this and I'm wondering what's the best way to go about this. At the moment, I've decided I'll just deal with the relationship question if any of the girls I'm seeing or will see bring it up and until then just not talk about it and enjoy my time with them. They're obviously on Tinder too (with the exception of girl #1, who I met at the school I'm studying at), and I'm not so naive as to believe they haven't been talking to other guys, even if they're not necessarily seeing them. If they assume we're exclusive then they're putting words in my mouth

But I also don't know the dating customs of this country as well as the US, like whether it's usually assumed you're an item after a couple dates together. In the US it seems like you assume the other person is at least talking to other people until you both verbally decide to be exclusive. Obviously Tinder seems to function the same way and I doubt many are seriously looking for "boyfriend material" there. But you never know.