me(17M) girlfriend's bsf is coming too close to me what should i doo

meri ek gf h almost ek sal s and uski ek bestfriend haii jisse meri phle jyada bat ni hoti thi but new year ke din usne mjhe meri gf or kch mutual dost ko ghr bulaya uske bad s hmlog ki bate hone lgii and wo mere ghr ke bhot close v rhti h toh fir usne kbhi kbhi mjhe bulana suru kiya ese hi time spend krne keliye or ab wo mjhse bhot attacheed hogyi h..... like kal mene usse thoda time rudely boldiya toh wo mjhe ghr bulai me gya to dkha wo ro rhi thi and usne direct mjhe hug krlia... or bhot close v hotii mjhe ky krna chaiye?