Kat Von D lives her life with "no regrets" -- which is exactly why she's NOT removing a big ass tattoo of Jesse James' face from her ribcage ... DESPITE the end of their relationship.
Kat tells TMZ, "I love my tattoo" -- adding, "It's more than just a portrait, it has a lot of meaning."
FYI -- the tat is a school picture of Jesse ... from when he was in the FIFTH GRADE.
Kat -- whose show "L.A. Ink" premieres tonight on TLC -- also has a tattoo of another ex-BF somewhere on her body ... and she tells us, that's not going anywhere either.
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