While they may have only been dating since March, its clearly serious as Taylor Swift has let her DJ boyfriend cat-sit for her. Tay Tay, 25, is currently in the UK .\rbr\rbrTaylor, currently on her 1989 World Tour in Europe has entrusted Mr. DJ to cat-sit. Looks like she found the purr-fect boyfriend. Sean Dowling (@seandowlingtv) .\rbr\rbrCalvin Harris Cat-Sits For Girlfriend Taylor Swift Calvin Harris just proved that he is puurrfect boyfriend material. The Scottish DJ has been cat-sitting, while his .