This kinda reminds me of my ex and his new girlfriend. She just turned 13 a few weeks ago and he's my age (15). Apparently all anyone ever does now is tease him.. though due to my own petty feelings I think he deserves it.. Also cause I know what they do as well..

Anyway, in my mind and as a child around your age, I agree with everyone else. It's not so much the age difference as it is the age. 12 and 14 might seem only like 2 years but the levels in maturity vary greatly. The ages are put under more judgment if sexual actions are involved as well (which they shouldn't be!!). Plus as I have witnessed (and experienced) kids our age cannot handle relationships sometimes in a healthy manner.. some don't really get what it means, others put too much of their own self-worth upon the whole situation and many only do it to feel like they belong.

If you really, really like her then what can I say other than you're gonna have to learn how to ignore the ones that tease you. If you don't see it as worth it, then break up either permanently or temporarily until going out with someone 2 years younger is accepted.