Girlfriend got me a new wallet. I like my old one better

Recently my girlfriend got me a new wallet for my birthday. im very thankful and it is a thoughtful gift. I was planning to start using the new one all the time so she knows I appreciate it but now that the time has come Ive realized I much prefer my old one. Ill probably just keep using it so I dont hurt her feelings but I wonder if theres I way I can get out of it and still use my old one lol