I would say focus on being fun and lighthearted and enjoying the relationship for exactly what it is.But beyond that, I would especially recommend that you keep your options open and you continue keeping up with all your other social activities that do not involve him: seeing your friends, attending any functions you like to go to, etc.
There are some things you can do (mostly by just shifting your perspective) that can help tremendously. For starters, I have seen a lot of women get caught up on this issue and as a result, they bring it up more and more, smothering every ounce of joy from the relationship.
At that point the relationship stops being fun and full of happiness and starts becoming more like a battle of wills.
My recommendation is to avoid badgering him about the topic.
Bringing it up once is enough, So what makes a guy want to call you his girlfriend?
“She really likes him, but her heart’s not as invested.” Romance rumors between Jenner and Styles first started swirling after they were seen getting cozy while on vacation in Anguilla earlier this year.