Am I wrong for feeling this way?

Last night my boyfriend of 5 years went to his friends house and they tattooed my name under his knee from a card I gave him a year ago of my hand writing that said “Love, (and then my name)”... he told me he had a surprise for me and sent me the picture. We had a conversation awhile ago about how we wouldn’t get our names tattooed on each other... I just feel weird about it because we are only 20 and we have been in a bad spot lately... am i wrong for feeling this way?