when your getting 2:1 on your call against any two cards Q5 is probably a coin flip, your only screwed against 5K,5A,pockets 55+,Q6+. Everything else and your getting more then enough odds for. Most hands your either a favorite or 55:45 (A2 vs Q5) or something like 60:40, or since he is raising w/ any two here because he's a good player and he knows he can't wait around Q5 is better then an average hand so you may even be best. However, your hand is not good 3 way, therefore, to make this a +EV its mandatory to raise the bb (who he even said would need a good hand to call, so he's tight, even better). Now your getting 2:1 on your money where your likely a favorite or a 60:40 situation at worst (only need 3:2, your still getting better then that) unless he picked up some monster, which is highly unlikely (20% of the time roughly) and still unexpensive because his stack is so low.