I mean, no? They are already giving you purchase content for free. Maybe try to find more champions that you could enjoy playing. The problem with OTPs is they become useless if forced off their main pick which is actually detrimental to the competitive integrity of ranked.
Lets look at a scenario here. OTP X plays only Shaco and is a challenger player. Shaco gets banned, he/she has never played any other champion in a competitive scenario and gets completely dumpstered because they don't have the skill on other champions to match their rank. That ruins the game not only for him/her but the four other players on the team. So I would recommend branching out and becoming as skilled on other champions as you are on your main.