Flopping 2-pair, unraised pot and facing a "huge" raise...

[Joost1982]

8-handed 50NL

2 limpers (UTG+1 and the button). Say you are in the SB or in the BB (doesn't matter that much for this example) and you can limp in very cheap or you can check with a "useless" hand like 7d4c.

Flop: 7s4h2h (or something else, but you flop 2 pair on a board with 2 suits)

You bet the pot and everyone folds except the button who raises your bet 3 times. Now what? The button is kinda loose and agressive. Should we push?

These kind of situations I find very difficult. Maybe I'm too chicken :P .