<human>: Can you condense the text into three sentences or less?

Hi there. Thanks for taking the time to check out my post. My boyfriend and I have been together for a little over two years and he has always had a lot of female friends. I've never had a problem with any of them, save for some feelings of jealousy that were admittedly irrational on my part. I have platonic male friends, some of which he's had jealousy over as well. Just normal things. 

Although recently, my boyfriend has become very involved with a female friend he has known for about a year. For almost a month now, he has been texting her non stop while we are together. I have been ignoring this, up until last night when we had just finished having sex and he rolled over and picked up his phone to begin texting her immediately.  

This girl is an artist. I used to paint a little myself and even made a painting for my boyfriend about a year ago. He took my painting and hung it on the wall next to his bed. This girl made three paintings for him and he hung them on the ceiling above his bed so he can 'look at them all the time'. 

He sees her at least twice a week, which is more often than I get to see him, unfortunately, due to our work and school schedules colliding right now. 

The entire situation makes me very uncomfortable. But I'm not sure if I'm overreacting or not because, as I said, I have been jealous over nothing in the past. I will admit that I can be a jealous person at times, but I've worked hard to try and be better. This just feels not right to me and I'm unsure if he has feelings for her, if he's already cheating on me, or if I'm being silly. 

Any advice is appreciated!
<bot>: boyfriend texts girl obsessively, hangs her paintings above his bed so he can look at them all the time. Not sure if I should be mad or not.