<human>: I met a woman (A2), about 8 months ago, that I became friends with.  When we met she was in a relationship, so our relationship was purely platonic (except for 2 drunken occasions when she expressed interest, nothing too serious).  She has been single for about 2 months now (we have mostly been separated geographically since she became single) , while I am considering asking another female (1B) to start dating me, we (myself and B1) have had a few romantic interactions.      

A2 and I are eating dinner tomorrow, as of now she knows nothing of B1.  If I do not tell A2 my true feelings I am worried I will always wonder, what if?  Even if she is not interested in dating me I feel like I can keep our friendship the same as it is now, I just want to know (and honestly I would drop B1 for A2 in a heartbeat).

Can you summarize the given text in a few sentences?
<bot>: I have a crush on my recently single friend, should I tell her my feelings before I get into a new relationship, and possibly miss a relationship with her, or just value our friendship?