ITILY

ITILY stands for "I think I like you," which is a simple, somewhat inconspicuous way to tell a person you like them much the same way a middle schooler would. Most people use it online or when texting to communicate that they are romantically interested in a person.

You should probably never use ITILY because it is very unclear. First, the acronym is not well-known, which will most likely confuse the recipient. Second, some people use ITILY to stand for "I think I love you," which is a huge step up from the "romantically interested level." Third, while most people use ITILY to convey romantic interest, some people may also use it just to show they think they are cool and want to hang out in the friendzone.

ITILY is a way to confess when messaging that you are somewhat sure you love a person. For example, after you go on your 5th date with your gf, you might say, "Dinner was great. ITILY. :-)"

For clarity's sake, you should probably never use ITILY because it is not well-known and will most likely cause the recipient to be confused. Also, confessing love via text or online message is typically an underwhelming experience for the recipient (you should probably do it IRL).