<human>: So my friend really likes the same girl I do, and she knows that I like her too. They are starting to get into a relationship together. I am definitely okay with this, and I try to support them while keeping my own feelings out of it as much as possible. 

I talk to this friend pretty often about their relationship, partially out of curiosity and partially because I genuinely hope it works out for them. However, sometimes when I'm trying to talk to my friend about things (even unrelated) the girl I like will walk up and join into the conversation--and very intense PDA ensues (hugging from behind, talking about... breasts, etc.). This girl normally does a lot of PDA in her relationships but I feel like they definitely step it up while I'm around. This makes me uncomfortable and I can't help but think they're showing off how happy they are to me.

Recently I messaged my friend on Tumblr and we talked about their relationship and she ended up asking me to ask the girl that I like if she likes her. Essentially, I am in an awkward position because I've been trying not to talk to that girl out of respect for their relationship; I think it would look very suspicious if I approached her out of nowhere to ask her who she likes.

Can you condense the text into a few key points?
<bot>: My friend and the girl I have a crush on are getting into a lesbian relationship and I am now in a very weird middleman position.