I would defiantly go and while it's all just holding hands and having a bit of a flirt it's all good, some girls are very much like this, I know one of the girls in my group of friends who does everything you say to me, yes at first I though it was more than it was but she really was just being ultra friendly (and enjoys a hug)
I defiantly wouldn't get involved with anyone who’s in a relationship mind, one I would kill a guy if he help my GF cheat (and he knew she was going out with someone) and two it hardly sets a brilliant example for how the relationship starts.
If things do get to the stage where it could get a bit more than flirting then personally I would talk to the girl, say how much I like her yada yada but that it's unfair on her bloke, she would regret cheating and it would make me feel uncomftable (but it's a really hard decision yada yada) ball in her court then.
I defiantly wouldn't get involved with anyone who’s in a relationship mind, one I would kill a guy if he help my GF cheat (and he knew she was going out with someone) and two it hardly sets a brilliant example for how the relationship starts.
If things do get to the stage where it could get a bit more than flirting then personally I would talk to the girl, say how much I like her yada yada but that it's unfair on her bloke, she would regret cheating and it would make me feel uncomftable (but it's a really hard decision yada yada) ball in her court then.


I would then wait and see if she makes further advances. This is because I would want to clarify completely whether she is fishing for a free meal on Valentines day or is genuinely interested. Just imagine, for one moment, that she is fishing for a free meal, you would feel absolutely terrible and feel used. Therefore, delaying any get together past Valentines day will provide the answer to this question, and avoid all un-necessary pain, feelings of being used and feeling terrible, that will accompany you if you don't make sure before hand. You'll feel much more confident in your ability to judge her intent by doing so. 